Is it normal to have no desire to drink, when all of my friends do?

Congratulations on doing what works for you.

You're probably not the only one who has no interest in drinking, but you're probably the only one who's confident enough that you don't want to do something just because everyone else seems to.

You might try expanding your group of friends by joining groups or clubs. I find people who have something to do are less likely to spend their time drinking or smoking. Yeah, it sounds like something lame that parents would say, but the people I hung out with largely didn't drink because they were too busy. That was really good for me because I was actually afraid of drinking. My parents are both dry, and treated it as one if the worst things you could do - a reasonable opinion considering my mom grew up in an alcoholic house.

I'm 26 now and have still never been drunk, although Im now comfortable with having a couple drinks, if it's something I enjoy, at events.