Tweetyep. That's completely normal. I couldn't be around a bunch of my old friends getting sloppy with my family, and me sober. It wouldn't be fun at all. That's the same reason why, back in the day, my wife didn't care to go to those parties either.
I hardly drink anymore also. I'll have a drink if me and the wife have a date night. I'll also have a few if I, by myself, go to a small get together with a few of my true friends, which happens maybe once or twice a year. I do not care to get smashed, at all, like I used to though. I've maybe got a drunk buzz once or twice in the last 5yrs. I'm not against drinking, or anything like that. I just realized one day, almost 5 yrs ago, that I hadn't bought any beer in about 6 months. And I haven't really enjoyed drinking since. I can still be around my friends drinking because they keep their composure. Allot of them are single, so they have to remain cool,lol. What female wants their date to act the jackass, know what I mean?
I know the type you're talking about though. The family guys that probably haven't partied in a while with everybody, so they act a fool. Yeah, that's the one's that shouldn't get invited so the get together remains a safe and fun environment for the kids.