Yes, I'm often asked about why too. I used to be bothered by this because (like you) I'd find that people often don't accept my answers. Right now I don't give

Yes, I'm often asked about why too. I used to be bothered by this because (like you) I'd find that people often don't accept my answers. Right now I don't give a clear answer (e.g. Q: "Why don't you drink?" A: "Because I don't want to.") because many people who ask don't seem interested in my reasons beyond using the reasons as an opener for a sales pitch about drinking. E.g., if I say that I don't like the taste, they'll insist that I haven't tried the right drink yet, sometimes going as far as to recommend a particular drink. If someone said they didn't like mayonnaise it would be particularly weird for someone else to insist that they try a particular type of mayonnaise, but the same logic apparently doesn't apply for drinking. There's also the problem that many drinkers believe non-drinkers judge them, and I feel that if I gave some of my reasons, the drinkers would feel judged.