By the point where it screws up someone's ability to earn and they don't have family money, they're no longer a functional human in society. Their other relationships are screwed, no matter which way you look at it, they're a welfare case.

My experience is that "those" crimes are caused by trauma and mental illness, but I guess the drug use is the easy thing to blame. It correlates super high at that point.

My experience with most of this is second-hand.