When this groom is concerned that he made a mistake, he asks Reddit:
My wife and I got married a couple of weeks ago. It wasn't a huge wedding, we had about 75 guests. During the planning, a handful of my wife's family members asked us about dinner options because they are vegan.
None of my family members are vegan but we wanted to make sure that everyone had good food to eat. At that point we hadn't talked with a caterer yet, but my wife assured them we would offer vegan options for them.
We found a caterer that offered delicious vegan food (we tasted it, very good). When we were planning the seating chart, my wife mentioned that one of her cousins said that she can't be seated at a table where meat is served.
I asked a few questions about it but my wife got frustrated with me so I dropped it.