Honestly I can’t understand why someone would get hung up on another persons eating and drinking choices, if you’re vegan/veggie and that works for you then great, if you’re not that’s great too. Personally I do eat meat although try and have chicken etc more than red meat when I do. With drinking I can quite happily have a pint or a glass of wine if our socially and not have any more, I don’t really enjoy going out to pubs and getting drunk with friends anymore, haven’t in a good while, probably not the politically correct thing to say but gave up other mind altering substances at the same time as drinking and don’t regret that either, felt a lot better mentally and physically since then.