Actually Townes Van Zandt put a lot of himself in the song he wrote.
You weren’t your mama’s only boy,
But her favorite one it seems
She began to cry when you said goodbye,
Sank into your dreams.
All this is true of Townes. He started sniffing glue as a child and never stopped with the drugs until he was dead at 52. A number of folks feel that his capability of writing folk music was comparable to Bob Dylan.
Coincidentally, regarding my growing up in 1960s in the Manhattan neighborhood where the Hells Angels (still) have a club, I saw some of them hanging out in front sniffing glue. And they weren't exactly 'kids', but grown men in their 30s or 40s. This was in the late 60s, or early 70s. They also harassed a biker friend of my brother's who made the mistake of walking his disabled Harley "Trike" (customized 3-wheeler chopper) down their block. They grabbed hold of the 'sissy' bar (that's what it was called) and wouldn't let him go until they gave him a good talking to about going down that block.