As of right now, our rehearsal dinner is going to have 50-60 people there, which just includes our wedding party, their significant others, and immediate family. We are having quite a few OOT family members (cousins, etc) that are coming in on Friday. FMIL told us they are more than welcome to come to the rehearsal dinner, if we want to include them. I can't decide if that's weird or not. What do you all think? If we do invite them, is it weird to send them an invitation to the rehearsal dinner since they aren't a part of the wedding? Should my mom host something at the hotel as a welcome for them instead? If so, how would she attend that and the rehearsal dinner?