i drink and im 17 next month, the fact that alcohol is bad for me doesn't bother me because alot of things i do are but i live the kind o life where i will die if i dont go out and have a drink with mates now and then. When you get to a certain age you relise that alcohol is such a bad thing when everyone around you is taking drugs.
I need to say that there are people that are weak-willed and so when they drink and they like it their more likely to become alcoholists. Having said that: I drink mostly in the weekends. Only when I don't have to work the next day because I wouldn't forgive me if someone got hurt or died because I had to drink the night before. Even company's policy is that we aren't allowed to drink alcohol 8 hours before we have duty. Of course there are drivers that do drink in those eight hours but no more than 2 or 3 beers. When I drink it's around 4 to 5 beers or bacardi-coke.
