Originally we were going to have just escort cards, letting people know which table to sit and and they can pick a spot. I've always been under the impression people are adults and can seat themselves, but now that I look at it we have long rectangular tables that seat 16-18 each and I think we should also have place cards. As they're big tables, I want to make sure groups of friends or families all sit next to each other. Would this be redundant? Or helpful? Thank you!