We decided a while back that the only children we would be inviting would be the children of the bridal party. Since then FH has decided he would like to invite the adult children in his family (cousins-all over 21). I would be okay with this, but he also has a lot of young cousins (12 and under) that will not be invited and I am afraid this could upset their parents. I feel like because of their ages this is kind of murky...help!