When at 17-y-o I went to spend my senior year of H.S. in Ohio, I had been going to discos where I could drink alcohol when I wanted from the time I was 13th., first in Zaragoza then in Madrid; the legal age to do so was 16 back then, but there were certain discoteques popularly known as "discotecas del chupete" ("discos for pacifier users"
), that me and my friends frequented not because they were the kind of discos that exist nowadays that have special early evening sessions for pre-teens; simply because they totally turned a blind eye to how very young some of us were!
Having said that, in the US I was surprised at several things about this matter; you couldn't drink nor go to pubs/clubs until you were 21!!!, boys and girls were indeed quite concerned and made elaborate plans to figure out how to get their next beer, at house parties some drank so much there was always somebody getting sick, etc....
Personally, I adapted to the very different lifestyle of going to watch and cheer for my friends at football/basketball/hockey/softball/baseball games and then for pizza (breadsticks for me, thanks!
), instead, and didn't miss the 'cubatas' and 'San Franciscos', I was used to have, I was actually, along with the athletes, one who could attend a party, not have a single cooler and not be totally bummed out about it;....the only thing I could never cope with and that I'll never comprehend with was the city having a curfew!!! (sorry, but that didn't feel like living in a free country to me!
)
What I'm trying to say is, what's forbidden becomes way more attractive in the eyes of folks.
I believe a reasonable 16-18 age limit for responsible alcohol intake would turn it into just another option, a possibility, something that is there and you can or can't do, and not seem so "vital"....and I can tell you, I suspect the possibility to go to discos before 21 reduces drastically sexual activity amongst young teen-agers!
I could be wrong, but this has been my experience.