Alyson Hannigan - Pretty in Blue
I think it's extremely normal. And that seems to be the majority sentiment in this post.

But I remember every time a real vegan post pops up on ONTD and someone mentions going to a vegan wedding, people are OUTRAGED that they are forced to eat according to someone else's diet, and think it's not fair to ask someone to attend your wedding if you aren't going to serve "real food." So despite the rolled eyes expressed in this post, I think there are a fair number of people who think that food isn't a meal without meat.