Disability and Separation
A note about terminology: separation-individuation, developed by Margaret Mahler, describes a developmental trajectory from infant dependence toward a separate, autonomous adult self, often symbolised by leaving the parental home. That trajectory assumes a body whose physical dependence naturally decreases with age. For many disabled people, physical dependence stays level, or increases, while the psychological task of separation still needs doing.
THE ASSUMPTION: growing up means moving out, physically, from parents, and that psychological separation and physical departure happen together, as one event.
THE RECONSTRUCTION: psychological separation, becoming a distinct person with one’s own mind, boundaries, and authority over one’s own life, can happen while physical proximity or physical dependence on a parent continues unchanged.
MAY LOOK LIKE: a disabled adult still living with parents well into their thirties, carrying quiet guilt or shame about not having “grown up properly,” regardless of how psychologically separate they actually are.
THE QUESTION: is this an unfinished developmental task, or a developmental milestone that was never going to look the way the textbook describes?
REMEMBER: separation is about authorship, not geography.
If you only have two minutes: psychotherapy has often treated “leaving home” as the visible marker of successful adult separation. For many disabled people, particularly those with lifelong or childhood-onset conditions, physically leaving home may not be possible, affordable, or supported, regardless of how psychologically separate and self-directed the person actually is. The developmental task doesn’t disappear when the geography stays the same. It just has to be found somewhere else.
You might recognise this: “I’m thirty-four and still live with my parents. People assume that means I never grew up.” “I left home at nineteen and came straight back when my support fell through. It felt like failing something, even though nothing about who I was had changed.”
Not the doorway. The decisions inside it.
The assumed marker
Moving to a different address, with a different name on the lease, as the visible sign that adult separation has occurred.
The actual marker
Who decides what time you go to bed, who you date, what risks you take, how your support is arranged, whether you can disagree with your parent and have it matter. Separation lives in authorship, which a shared address doesn’t automatically prevent.
A disabled adult sharing a home with parents, by necessity or choice, can have achieved full psychological separation: a distinct identity, firm boundaries, their own values, the capacity to disagree and be heard. A non-disabled adult who moved out at eighteen can still be calling a parent for permission on every significant decision. The address was never actually the thing being measured.
Typical adolescence offers a series of small separation rehearsals: staying out past curfew, disagreeing loudly, a first trip without parents, a bedroom door that closes. Some of these may be physically unavailable to a disabled teenager, depending on support needs, accessible transport, or parental anxiety about risk. That absence doesn’t mean separation can’t happen. It means the rehearsals have to be found elsewhere, sometimes with real creativity: an argument won on its merits rather than through physical distance, a decision made against a parent’s wishes and held to, a private conversation a parent isn’t informed of. These can do the same psychological work a slammed bedroom door once did.
A client in his early thirties, living with his parents due to support needs his local authority hasn’t yet funded independently, describes persistent shame about “still being at home,” comparing himself constantly to friends who moved out a decade ago. His therapist asks a different question: when did you last make a significant decision your parents disagreed with, and hold to it anyway?
He thinks, then describes exactly that: choosing a course of study his father thought impractical, and finishing it regardless, living under the same roof the entire time. The separation had already happened. It simply hadn’t taken the shape he’d been taught to look for.
He’d been measuring his adulthood by an address, when the actual evidence had been sitting in his own decisions the whole time.
I’m thirty-two and still live at home. I feel like I never actually grew up.
When did you last make a decision your parents disagreed with, and hold to it?
My course. My dad thought it was a waste of time. I did it anyway.
That’s separation. It just didn’t come with a new address.
- Set the address aside
Deliberately stop using living situation as the measure, for this exercise. - Find the decisions
When have you made a significant choice your parent disagreed with, and held to it? - Find the boundaries
Where do you currently draw a line your parent is expected to respect, even inside a shared home? - Find the private self
What do you think, feel, or want that your parent doesn’t fully know, by your own choice? - Name what separation has already happened
Based on the evidence above, not the address, where does psychological separation actually stand?
Where this can help
Finding genuine evidence of psychological separation that a living arrangement has obscured, and relieving shame built from measuring adulthood by a milestone that was never realistically or fairly available.
Where interpretation should stop
When a genuinely enmeshed, under-separated relationship is relabelled as fine simply because physical independence isn’t realistic; when the absence of a desired, practically achievable move is treated as acceptable without checking whether more independent living is actually wanted and currently blocked by inadequate support.
Mahler’s separation-individuation theory is a foundational, well-established developmental framework within psychodynamic thought. Its disability-specific critique and reconstruction here, separating psychological authorship from physical departure, draws on disability studies and independent living literature and is a Disability in Psychotherapy synthesis rather than a revision within developmental theory itself.
Separation is about authorship, not geography. By that measure, how much have I actually already separated?