I don't drink because I:
...Hate the taste of pretty much every alcoholic drink I've ever consumed.
...Can't afford it.
...Don't like the way it makes me feel when I drink it. I get this feeling like my stomach is going to explode.
...Don't even want to deal with the concept of being sick, getting a hangover or doing something REALLY stupid while intoxicated.
It's just not worth it to me. I'd rather spend the money on musical gear and video games.