Sour cherry juice probably the most feequent. Though if there's food, I'll probably pick the food option.

As for why, well, I don't really go the bars for the drinks, but instead for the company, to talk with my friends and have fun. I buy a drink or food as "entrance fee" and I use the calories to keep me from starving. If there's any fancy non-alcoholic/non-caffeinated drink (or food) I may pick it as a change. I also dislike alcohol and its culture which society tries to push so hard to everyone (especially younger people), thus it's my way of acting agaist this. For me it doesnt taste well, it's literary cancerous poison that helps mask social anxiety without solving the issue, only extending it and there are companies making huge profits by harming so many people out there. It's sad. I want to be the one having fun, not alcohol. (Btw I'm not in favor of banning alcohol, this may only cause more issues. A proper approach would probably be to teach people for the issues and (possibly the hardest part) to have a better society without so many struggles which tend to push people to drink alcohol.)

(I recently found out that there is a "straight edge" community inside punk community and I seem to kinda align with them :) (I'm not talking about the hardline community, I think this may not even be considered punk).)

Lol, I don't know if you expected a text-wall when asking this, but well, there you are.😅