I am honestly suprised about the lack of drinkers here on the forum, underage or otherwise.
Been drinking quite regularly since I was aroudn about 14. In moderation most of the time, have drunk qutie alot and to silyl extents in the last year and a half while at University, because the Uni bar is so cheap.
Great way to have fun and loosen up. I love it, but will inevitably calm down as I get older. Hell, I plan to become a teacher, so I will definitely calm down.
EDIT: I am also British, which is probably important too. The legal age for drinking here is 18, but binge drinking and underage drinking has become, unfortunately, a massive part of our culture in the last ten or twenty years.