Word, I live in the UK, I always had a glass of cider or wine or beer with my meal, I have never been paralytic, and I have never drunk "too much" I think if you show your parents your responsible with your drink, they'll be chill about you drinking, I know my mum was when I was under-age...
oh and as to the guy who said charcoal works: it's normally for absorbing ethanol in people with alcohol poisoning, and it doesn't even do that well:
http://www.informaworld.com/smpp/content~content=a783406643~db=all~order=page
what does work a bit is polyolefine based polyurethanes, apparently hydroxyl-terminated polybutadiene (acrylonitrile) is the best one to use, but good luck synthesizing / finding that