What made you choose to not start drinking/smoking?
I also bring this up because I have a hard time understanding why some drinkers don't like being around non-drinkers.
I don't smoke because my mom was a nurse and because I'm a cheapskate.
I don't drink because I'm a cheapskate, and getting drunk doesn't actually make me feel good.
Of course, if the non-drinker was to get all preachy, derogatory, judgmental, and pompous, I could see that, but if that's not the case, why is it such a problem?