My FI's family are all really nice people but they don't exactly grasp the concept of deadlines and time. As an example, one year we were supposed to eat Christmas dinner at 11. At 1:00 some of the people weren't even there yet. I'm worried about having RSVP drama with some of them not sending in their RSVPs on time and and am seriously considering either having a really early RSVP date. Our wedding is June 2nd. Would it be weird if our RSVP date was at the end of April? That would give us more time to try and track them down.