I was raised in 2 different arena's. I was fostered in the suburbs, and spent my early teens through adulthood in NYC, Brooklyn and The Bronx. I hung out with kids that didn't go to school, smoked weed, drank alcohol, all from a very young age. I became just like them. A lot of those guys I hung out with started using heavy drugs, like heroin, LSD and coke.
I drifted away from those "friends" and ended up meeting others in the Bronx. There, we were more sports oriented. I drifted away from drugs and alcohol, and got healthy. I don't know if it was nature, nurture or what, but I do know that it has a lot to do with the Grace of God, as I really threaded the needle, getting to where I am now. Quite a few bumps along this road, please don't follow.
BTW, a lot of those guys back in Brooklyn are dead (AIDS, murder), strung out, or incarcerated, not all, mind you, but a lot.