So we are having a kid free wedding, but my fiancé is one of ten kids, and he ranks number four. He has nieces and nephews that aren't invited, but does want to invite his youngest brothers (8 and 10). I'd do an age only thing, but he has a niece that is the same age as his brother. Also, my sisters (14 and 17) are part of the bridal party and will be invited. Thoughts?