Ok. We can agree to differ in opinions on it, but I'm fairly certain you would actually be classed as a vulnerable adult over here (in the UK). You are over 18 with no means of supporting yourself, possibly have no fixed abode, and have been inpatient in the mental healthcare system. These are the reasons for my thinking this way.

Also - and again I mean this in the kindest way possible- while I agree that your peers are also pretty clueless, to use your word, the way we all are at age 20 - I think that you are either living in a very privileged world or have a very unrealistic view of the world if you really hold the opinion that it is a norm for most parents to help and fix their adult child's problem 100%. Good parents do what they can to help and support adult children yes, sort it out 100% - no. Because often they can't, for a bunch of valid reasons. Then there are countless young adults who have useless parents and have to do it all from a very young age for themselves. I have many friends in this category. So while your friends may be helpless at 20 without mummy and daddy stepping in to fix all their problems, this is not usual in most of the world. We have to have to adjust to helping ourselves with whatever appropriate support we can access. That's simply part of growing up.