The idea nearly every person drank, smoked or used drugs in their life

I'm so prudish.

I can't explain why I don't like it. Maybe because I don't do it, never had the urge to do it, and am always the black, lonely sheep at parties. People look at me like I'm an unicorn when I don't want to partake in drinking beer or smoking weed with them

Are human beings unable not to do either one of these things? Am I the one who isn't "normal"?