Interesting.
I wasn't a geek at school but a bit of a loner and outsider for some reason people didn't like me and I found/find it hard to make friends.
I didn't really get into drinking at school it came after but I'm not going to say I didn't know people that did. My brother ever the rebel did and his friend had a girlfriend my age who they used to take out and go drinking with. I remember going to his and his bestfriends bday (born same day a year apart) and having a few wines from a cask BLURGH

and my brothers girlfriend at the time going are you ok, are you sober, are your parents going to get angry? LOL ummm I had less to drink then her and she was tiny.
I met DP in his 7th form year at school and I know he drank at his afterball I was there a friend of his came up and took him aside. What I didn't know was that he was likely stoned, I think by that stage he had stopped doing other drugs too.
I believe if that a child/adolescent has a hobby, a sport or something then they are less likely to go off the rails, because of that sense of achievement.
I do know that as a teen that the weed that went round a couple of times got laced with flyspray... P wasn't really around in my teens. A few people dropped ekkies but not in my circle that I was aware of.
TBH the whole drinking drug thing came later for me. Never done much more than drink however and never even had a drag of a cigarette. I was the I'm not going to do it because its cool girl lol.
I aim to raise DD with much the same upbringing I had and just be open with her. We pretty much were able to do what we wanted because our parents generally knew where we were and who we were with we never had curfews. Besides DP works hospitality and is round drugs alot and knows the signs in people pretty quickly and how to counteract it. I do too just not to the same extent