Honestly that is really something that you have to decide for yourself or talk to your sponsor (if you have one) about. As far as the people drinking the non-alcoholic stuff, you really shouldn't worry, you can't take their inventory. If they feel comfortable drinking non-alcoholic (which in reality is not, it has a very very small among in it) then that's their prerogative. I kind of get the feeling that you know your personal answer to your question. From my understanding of the program we are supposed to have complete abstinence from alcohol, not even a taste.