Am I missing out of something?

I'm 17 and I'm a guy that don't like to party or drink. I'm not like totally against it, I just think there's other things to do. Now I sit at home every Friday night and most of my friends are out drinking. I've experienced peer pressure because of this and I get this feeling that I sort of betray my friends when I'm not with them. Not all of my friends drink (only like 2) and recently I've just been hanging out with them. There's also this girl that I feel a connection to and she appears to be interested in me, but the problem is that she likes to do these types of stuff, so do you think I will regret if I don't do anything about it? It wouldn't be such a problem if it wasn't so common to drink here, there's seldom a day without hearing something related to alcohol, and I sometimes don't feel so good about it. But on the other hand, shouldn't I be out drinking, like almost everyone in my age?