Ok so one of my brother's isn't going to be able to make the trip to my wedding but my nieces and nephew are coming. I found out that my niece (19 y/o) is planning to bring a friend to the wedding but she hasn't even asked! Our wedding is on the small side with family and close friends attending and since I knew my brother and wife weren't going to make it I figured WE could either save the money (it's a per person event) or invite guests of our choosing. Am I being unreasonable? Is it ok that people invite someone that isn't invited to replace someone that cant make it? My worry is that my nephew will want to bring a friend as well. Is this common? because a friend of mine wanted to invite her boyfriend's 2 cousins since her boyfriend couldn't make it to our engagement party! Please advice
and sorry for the wordiness!