Just throwing in my 2cents. I don't drink and I've never drank. Growing up it never interested me. The more I didn't drink when out with friends, the more certain it made me that it's something I never want to do. They would talk about the weekend all week, talk about how fun it's going to be and how "smashed" they were going to get. The weekend would roll around, they would drink, forget why they were out, become a pain to deal with, use the drink as an excuse to act like douches, then whinge all Sunday about how crappy they would feel and how broke they were; but how great it was to get "smashed". During the clubbing years, I would go out to town for years with different groups and it was basically rinse and repeat with everyone. It makes you question if anyone was actually knowing if they were having a good time or not.
As it's something I've never gotten into, it's just one less thing to worry about. I guess it's like smoking to non smokers. When I tell people I don't drink they are usually confused and ask the same question in 10 different ways. Then they finally get over it.