Most of those guys today in middle age, if they are employed at all, are hanging on at the edges as dishwashers, cab drivers and the like. They spent their most productive years in their 20’s sitting around and getting high rather than pursuing education and establishing careers.
I love how everyone takes personal, anecdotal evidence, then mixes in a dab or two of pre-conceived notions, puts it in the oven for 30 seconds, and bakes a grand, sweeping, iron-clad conclusion cake.
Hey, what do you expect me to believe? My own eyes watching this stuff progress with people I actually know over 3 or 4 decades, or some academic theories being cut/pasted onto a web forum?