“Overgrown Children” and Where to Find Them: Film Portrayals of Coresiding and Residentially Independent Siblings’ Developmental Maturity

Though young adult coresidence (in which individuals aged 18–35 reside within the family home) is stigmatized in mass media, research has not explored how such depictions relate to understandings of development. We used qualitative content analysis to explore how contemporary Canadian and American films depicted coresiding young adults and their similarly aged, residentially independent siblings with respect to various markers of adulthood. We found that coresiding characters were largely portrayed as developmentally immature both socially (e.g., full-time work) and characterologically (e.g., relational competence). In contrast, residentially independent siblings were overwhelmingly cast as developmentally on time. We argue that these depictions and contrasts reinforce a stigmatized coresider trope, framing the traits and actions of coresiders in terms of atypical development and attributing this living arrangement to individual faults. Implications for social attitudes and the wellbeing of emerging adults are discussed.