[ajb]

Spoiled kids and 'adultesence' are portrayed here as the same issue. But I think in the latter case, a lot of superficially immature behaviour is just a form of status signalling. It's showing that you (or your family) has enough social, financial and educational capital that you can afford to play even in your twenties, when someone with less would be working all hours in a poorly paid job to get by.

[_yosefk]

I can't recommend treating immature behavior as a reliable signal of status, having seen a lot of immature people with no social, financial or educational capital whatsoever who were simply immature.