This narrative review defines and examines 'Failure to Launch' (FTL) — abled young adults living with parents while neither employed nor in school — and compares it to related constructs (hikikomori, NEET, peter-pan syndrome, pathological demand avoidance, boomerang children, modern-type depression), reviewing prevalence, risk factors, assessment tools, and emerging interventions.
FTL is clinically common but has only one dedicated empirical study to date; the hikikomori literature offers the most relevant evidence base, with that condition now documented globally and associated with depression, anxiety, autism spectrum traits, adverse childhood experiences, and suicidal ideation.
- Only one empirical study specifically on FTL exists, so most findings are extrapolated from related but distinct constructs. - As a narrative (not systematic) review, inclusion was not systematic and may reflect author selection bias. - FTL lacks a standardized definition, validated assessment tool, or established diagnostic criteria, limiting comparability across studies.
Clinicians seeing young adults stuck at home, unemployed, and out of school should screen for depression, anxiety, autism spectrum traits, and family accommodation patterns, drawing on hikikomori and NEET literature until FTL-specific guidelines exist. Parent-focused interventions (e.g., SPACE program adaptations) show early promise and may be a useful starting point.
