Why "Setting Boundaries" Doesn't Work for Parents of Adult Children, and What Does
A note on voice: throughout this book the voice is "we." When one of us is telling a story only one of us lived, you'll see a name.
Parents of a struggling adult child are told to "set boundaries." Used the common way, the advice fails, because what people mean is "get my adult child to behave differently," a behavior-change demand rather than a boundary. You can't change another adult by wanting it enough. The wall is the moment the tools that built the child stop moving the adult. The way out is to stop working on your child and start on the only person you control: you.
"Set a boundary," the way most people mean it, is a demand for the other person to change wearing a boundary's clothing. Parents want their adult child to show up, take feedback, and act grown, a list of behaviors they want the child to perform. That isn't a boundary. It fails because no one controls another adult's behavior, and reaching for a bigger version of the same tool only hardens the stall.
I was standing in the lobby of a martial arts school I consult with, watching a family try to solve a problem that couldn't be solved the way they were trying to solve it. (Greg)
Mom, Dad, and their daughter. The daughter was twenty-four. For two years she had worked the front desk of the family business, and for two years she had been, by every honest measure, a poor employee. Late. Distracted. Defensive when corrected. The parents owned the business. They also owned the apartment she lived in, the car she drove, and the phone in her hand (and the plan it ran on).
Everyone in that lobby had advice (everyone always does).
The senior instructor thought she needed "clear expectations." The office manager thought she needed "consequences." A parent waiting for class, who had been listening the way people do, leaned in and said the thing everyone says. "You just have to set boundaries."
Everyone nodded. Of course they did – it is the most agreeable sentence in the room.
Set boundaries…
I have heard that sentence in school lobbies, in conference rooms, in my own therapy office, and at a few dinner tables where I was a guest and had the good sense to keep my mouth shut. It may be the most repeated piece of parenting advice for adult children in America (and I have never once seen it work the way it was meant). It is also, the way most people mean it, useless. Not WRONG, exactly. Useless. The two are different, and the difference is the reason for this book.
Here is what the parents wanted. They wanted their daughter to show up on time, take feedback, and act like an adult. That is a reasonable thing to want. Notice what it actually is: a list of behaviors they wanted HER to perform. When they said "we need to set boundaries with her," what they meant was "we need to get her to behave differently."
That isn't a boundary. That is a behavior-change demand wearing a boundary's clothing.
And they had tried all of it. They had tried the calm conversation. They had tried the raise tied to attendance. They had tried Dad's stern voice and then Mom's tearful one. They had tried writing it down and taping it to the monitor (an actual piece of paper, actually taped). They had tried "this is your last chance," and then they tried it again, and then a third time, which is how you know it was never actually a last chance!
None of it worked. And every time it didn't work, they reached for a slightly bigger version of the same tool – louder, longer, one more time.
That is the wall. Not the daughter (she was never the problem to solve). The wall is the moment a parent discovers that the tools that built the child no longer move the adult, and that nobody warned them this day was coming.
Two people, one gap, and neither set of tools crosses it. A parent hands over help that is really management. An adult child hands back an accusation that is really an invoice for the past. Both are waiting on the other to go first (which is the same as nobody going), and the standoff will usually hold for years. Lobby or therapy office – the furniture changes, the standoff doesn't.
Across town, in an office with two chairs and a sound machine humming outside the door, I was sitting with a nineteen-year-old who had the opposite problem and the same problem. (Ryan)
He was bright, articulate, and completely stuck. He had a theory about why his life had not started yet, and the theory was that his parents owed him an apology. Until they apologized, correctly and specifically, for the failures of his childhood, he couldn't be expected to move forward. The apology was the precondition. Everything was waiting on it.
His parents were in their own version of the lobby. They were ready to do almost anything to get him moving. Pay for another semester. Cover the lease a few more months (again). Drive over and talk it through one more time. They read his stuckness as a problem they could fix, with the right combination of support and pressure, if they could only find it.
What I see from this chair, over and over, is two people reaching across a gap with the wrong tools. The parent usually reaches with control that looks like help, and the adult child reaches back with blame that looks like accountability. Each is waiting for the other to move first. Neither can.
For about two decades, control was the job, and it worked, so your brain filed twenty years of evidence that control works. Then authority drains out of the relationship, fast, around age eighteen, while the responsibility (the bills, the lease, the phone plan) stays on your desk. The old tool no longer fits. Because it always worked before, you assume you simply haven't used enough of it, and using more is what keeps the family stuck.
The toolkit wasn't wrong, and that may let you off the hook. For most of your child's life, control WAS the job. When your kid was four, you decided their bedtime, their diet, their friends, and what came out of the television. That wasn't being controlling. That was PARENTING. A four-year-old who sets their own bedtime is a four-year-old in danger!
For roughly two decades, the world rewarded you for behaving as if you were in charge. Because you were. Every time control worked, your brain filed it as evidence that control works. TWENTY years of evidence. That isn't a habit you can think your way out of in an afternoon.
Then the ground moved. Slowly in adolescence, and then all at once around eighteen. Your authority drained out of the relationship while your responsibility, the bills, the lease, the phone plan, stayed exactly where it sat. (We will map this precisely in the next chapter. For now just notice the pattern of it: authority gone, responsibility still on your desk.)
And you reached for the tool that had worked ten thousand times. It didn't fit. And because it had always worked before, you assumed the problem was that you hadn't used ENOUGH of it. You used more. A longer talk. A firmer consequence. One more conversation… surely this one would land.
That is the problem, and it's a smart person's problem (the harder you work, the worse it usually gets). The move that feels most responsible – trying harder with the only tool you trust – is the exact move that keeps the family stuck.
The genre sells you a changed child. This one sells you a changed parent, which is probably the only thing that has ever moved a stuck family. Two roads leave that lobby: keep managing your kid, or start on the one adult in the building whose behavior is actually yours. By the last page you'll tell a boundary from a demand, see where authority and responsibility come apart, and work the three gates – Setting, Holding, Tolerating.
Most parenting books promise that your child will change. This one promises that YOU will. That promise is the only approach we have ever seen actually move a stuck family forward.
You have two roads out of that lobby. On the first, you keep working on your kid: better arguments, better incentives, better timing, until one of you finally gives up. On the second, you stop working on your kid and start working on the only person in the building whose behavior you actually control. That is you.
There is no third road. The thing you can't do is change another adult by wanting it badly enough. We say it plainly because the whole genre tiptoes around it, and the tiptoeing is probably why parents stay stuck for years (five, ten, sometimes twenty).
Here is the promise. By the end of this book you'll know the difference between a boundary and a demand. You will understand why the gap between authority and responsibility is the exact spot where families get stuck. And you'll have walked the three gates that decide whether boundary work holds or collapses: Setting, Holding, and Tolerating.
You will have real scripts, in real words, for the moments that actually happen at the dinner table and on the phone (the two places this goes wrong most). And you'll get an honest accounting of what this work does and doesn't promise, because a framework that overpromises is just one more tool that fails you when you need it most.
Nothing here is a lever you pull on another adult. Movement on their end, when it comes, follows a change in how you stand (and it often does come, later than you want it). Going cold is not the method, and this is not therapy or medical advice. Addiction, abuse, or danger means a professional in the room and this book beside it. What you get is a map – field-tested, clinically grounded.
A few things this book isn't.
It isn't a method for making your adult child apologize, comply, get a job, leave the basement, or call more often. If any of that happens, and sometimes it does, it happens as a side effect of you changing your posture. Never as the direct result of a technique you ran on them.
Boundaries are not the wall, either. Some parents hear the word and reach straight for it: cut them off, stop the money, teach them a lesson. That isn't what we teach, and in our experience it usually backfires. The work here is warmer than that. It is also a great deal HARDER than that.
One more thing this book is not: therapy or medical advice. If your adult child is in real danger, if there's addiction, abuse, or risk to life, this book doesn't replace a professional in the room. It can sit alongside that help. It can't stand in for it.
What it is: a map. A clear, field-tested, clinically grounded map of a passage almost every family walks and almost no one is taught to walk. One of us has watched this failure mode play out in family after family and business after business. The other has watched it from the therapy chair, where the same dynamic walks in under a hundred different names! We wrote it together because the problem shows up in the family room, the conference room, and the therapy office, and it's the same problem every time.
Six questions, answered with nobody watching. Resentment attached to money you keep spending. A recent talk aimed at their behavior that changed nothing. A last chance that has now come around twice. A dreaded picture that has never once happened. More of your effort inside their life than theirs. And advice you would never hand a friend in your exact spot. Two or three landing (usually it is more) puts you at the wall.
Before the next chapter, an honest inventory. Not a quiz with a score. Six questions you answer when no one is watching.
If a few of those landed, you've hit the wall. Good! That is the first honest thing anyone has said about it, and honesty is where the work starts.
Turn the page. The next chapter maps the curve – where your authority went and why the responsibility stayed.
With an adult child you have influence and no authority, so the boundary is about what you will and won't do. Say it once, calm and warm, then hold it without requiring them to agree. Less talk, less emotion. The emotion you show is the one the relationship needs, steady and open, not the fear or guilt driving you. Nine situations below, with the effective strategy for each.
Scenario: Life decision. 28-year-old announces they're quitting a stable job to start a business with no savings, no plan, and no customers. The parent expresses concern once, clearly, privately. The adult child pushes back: 'You've never believed in me. You always do this.'
The child: Turning the honest concern into evidence of a long-term failure of parental belief. Using the relationship history as the weapon.
The parent must tolerate: Being cast as the unsupportive parent in the adult child's story. The guilt of wondering if that characterization is partly true. The urge to walk the concern back in order to repair the relationship in the room. Emotions to tolerate: guilt, the fear of the relationship cost, the urge to walk it back.
If they cave: The one honest conversation the parent was willing to have disappears. The parent either enables the decision with money or endorses it publicly in order to not be the villain. The adult child loses the only person who might have asked the right questions.
Effective strategies: Once, calm and warm: 'I have real concerns, here they are. It is yours to decide, and I am still here.' No funding, no repeat. Steady.
Scenario: Relationship concerns. 30-year-old brings home a partner the parent has serious, specific concerns about. The parent says their piece once, privately. The adult child responds: 'If you can't support my choices, I won't be bringing them around anymore.'
The child: Using relationship access as leverage. Framing the parent's honest concern as a failure to support.
The parent must tolerate: The threat of reduced contact. The possibility of being right and staying quiet anyway. The knowledge that if they say nothing, they're complicit, and if they say something, they lose access. Emotions to tolerate: the threat of less contact, the pull to stay silent, the pull to over-press.
If they cave: The parent pretends to support something they do not. The adult child eventually detects the performance, because they always do. The relationship gets built on a foundation of the parent performing approval they don't feel.
Effective strategies: Say it once, privately and calm: 'Here is my concern.' Then stop, and keep the door open. Say it with love and leave the control out.
Scenario: The repeated rescue. 32-year-old has a pattern: overspend, fall short, call the parents. The parents have always answered. They have decided this time is different. The call comes. The urgency is real. The guilt is enormous.
The child: Escalating emotional urgency. 'I don't know what I'm going to do.' Possibly: 'I thought you loved me.' Using the relationship itself as the argument.
The parent must tolerate: The terrifying imagined consequence: the child loses housing, goes without food, ends up in a genuinely dangerous situation. The guilt of what feels like abandonment. The criticism of other family members who say, 'How can you not help your own kid?' The awareness that the $400 would end the immediate crisis. Emotions to tolerate: the catastrophic fear, guilt, criticism from other family.
If they cave: The lesson never arrives. The rescue absorbs the consequence before it can do its work. The pattern runs another three years. The parent absorbs suffering that belongs to the adult child. The adult child never builds the capacity to solve this problem because the call always worked.
Effective strategies: Warm and final: 'I am not sending money this time. I love you, and that's why.' Offer resources, not the check. Stay calm and warm.
Scenario: The estrangement threat. 35-year-old is angry about a boundary the parent set (they stopped funding a subscription service). The adult child says, 'If you keep doing this, you're going to lose your relationship with your grandchildren.'
The child: Using grandchildren as leverage. The ultimate pressure tool – access to the grandchildren.
The parent must tolerate: The fear of losing the grandchildren. The guilt of wondering if holding a boundary over a $20-per-month subscription is worth the relationship cost. The enormous social weight of 'what kind of parent gets cut off by their own child?' Emotions to tolerate: the fear of losing the grandchildren, guilt, the social weight.
If they cave: The subscription gets reinstated. The adult child has found the pressure tool that works above everything else. Every future boundary negotiation now has the grandchildren as the implicit threat.
Effective strategies: Steady and warm: 'I am not reinstating it. My door stays open.' Name the choice as theirs, not yours. No fear in the voice.
Scenario: Default childcare. The 29-year-old treats the parent as standing free daycare and adds guilt when the parent declines.
The child: Dropping the kids with little notice, hurt or sharp when the parent isn't available.
The parent must tolerate: The guilt of what kind of grandparent says no, and the fear of losing time with the grandkids. Emotions to tolerate: the bad-grandparent guilt, the fear of losing time with the grandkids.
If they cave: The parent's own life gets absorbed, and a generous offer hardens into an unspoken obligation.
Effective strategies: Even and warm: 'I can take Tuesdays. I am not available on demand.' Yes when you can, no when you can't, both real. Say no without the guilt in your voice.
Scenario: Open-ended move-in. The 31-year-old wants to move back in with their own family and no end date.
The child: It is just temporary, with no plan, no timeline, and offense if terms come up.
The parent must tolerate: The fear of being the unsupportive parent and the discomfort of naming conditions for your own child. Emotions to tolerate: the fear of being unsupportive, the discomfort of naming terms, guilt.
If they cave: An open-ended dependence sets in, and temporary becomes the new permanent.
Effective strategies: Clear and warm: 'A defined stretch, with terms we set first. I will help you plan the launch.' Hold the structure calmly.
Scenario: Relitigating the past. The 30-year-old repeatedly demands the parent accept blame for old wounds as the price of the relationship.
The child: Returning to the same accusations, escalating until the parent absorbs the fault.
The parent must tolerate: The urge to over-apologize or to defend closely, and the fear that the relationship hinges on caving. Emotions to tolerate: the urge to over-apologize, the urge to defend, the fear of caving.
If they cave: The relationship runs on the parent managing guilt, and no apology is ever enough to close it.
Effective strategies: Calm and brief: 'I have heard you and owned my part. I won't keep reliving it. I want us from here.' Hold steady.
Scenario: Asked to keep a secret. The 33-year-old asks the parent to hide something from the other parent or the family.
The child: Just don't tell them, with the relationship framed as the reward for going along.
The parent must tolerate: Being cast as unsupportive for declining, and the wish to be the trusted one. Emotions to tolerate: being cast as unsupportive, the wish to be the trusted one, guilt.
If they cave: The parent becomes complicit, and the secret puts them in the middle of something that's not theirs to hold.
Effective strategies: Even: 'I won't keep that from your other parent. What is between you is yours.' Warm, no lecture. Calm refusal to be triangulated.
Scenario: The large loan. The 34-year-old asks for a down payment or loan the parent can't give without risking their own retirement.
The child: Other families help, it's just a loan, with disappointment if the parent declines.
The parent must tolerate: The guilt, the comparison to families who write the check, and the wish to make it possible. Emotions to tolerate: guilt, comparison to other families, the wish to make it possible.
If they cave: The parent endangers their own future, and the adult child skips the slower path of saving for it.
Effective strategies: Warm and clear: 'I can't do that without risking my retirement, so it's a no. I am cheering you on while you save.' Calm and final.
These nine examples are the adult stage of a five-stage set. For all five stages and 45 examples, see Boundary Setting at Five Stages of Life.