I'm somewhere on the autism spectrum, and I think that led me to take parental advice too close to heart. I'm 21 years old and I keep looking back at my teenage years with regret and resentment. I avoided parties and normal social interaction with people because I thought that they were trying to corrupt me with their alcohol use and I wanted to be above it all. I gave exaggerated polemics about how people were seriously hurting themselves with even the mildest of alcohol or drug use that must have made me look completely idiotic. I started avoiding parties and being cautious of people early on in high school, even for people who didn't drink, because I was always afraid. I even complained to the Advertising Standards board about an anti drinking advertisement because I saw it as normalising and even encouraging teenage drinking culture.
My aversion evolved in complexity to the point where I could accept other people's drinking (although I still saw it as morally wrong), but the moment I turned 18 I decided that it was suddenly ok. As if my brain had literally used the alcohol drinking law as its guide. I drank heavily at parties like everyone else, never quite getting much enjoyment out of it, possibly because of how socially awkward I was. Now I try, and usually succeed, at keeping my alcohol use in check and only ever drink at social occasions anyway. I also have no objection to anybody's personal choices any more, although I do like to warn the people I care about of the some dangers of their actions (which is normal... right?)
However I'm a very depressed, lonely and unsatisfied adult and I keep looking back at my teenage years as where I really started to fall behind in life. I wish an adult that I trusted told me it was OK, or even good to drink alcohol and go to parties where everyone else was drinking alcohol. I went to one and I could barely have any fun because I kept worrying about what my parents would think. I lied to them about there being alcohol at the party. I find out later that they would have been ok with me drinking and would have gladly taken me on lifts home from any party as long as I didn't take any drugs, didn't overdo it and kept my grades up.
I don't blame anyone but myself for my actions, although I wish that schools and other official sources of information didn't have to take a hard line policy against alcohol. I actually got a good education about effects, one where they explicitly avoided saying "Don't do drugs" or "Don't drink", but the barrage of negative effects really did encourage evangelistic avoidance in someone like me.
I also don't mean to diminish any of the regrets of people who have problems with alcohol. I am just saying what role alcohol played in that stage of my life, and how I think a different approach might have helped me.