I think that in most societies, adults are expected to provide for themselves. Western societies, at least, but I do not really know the culture of other countries.
Youth are far more vulnerable. Granted, things have changed since the seventies, but It was expected that if I was not attending college after high school, I would have a job and be fending for myself immediately after graduation, and most of us, including myself, were.We were motivated, even if by embarrassment, to not be living with our parents except as a last resort, or temporary emergency scenario.
There seems to no longer be the stigma about being a ”taken care of” adult vs. independent adult now as there was when I was a youth.