I know there's always a lot of talk about whether or not to invite kids, but my issue is a bit more complex. We decided early on to not invite kids; we have no neices or nephews, and all my cousins were excited about the idea of hiring a babysitter for a fun night out. However, my FI has an aunt with 7 children. 3 of these cousins are over 18, and the rest are 7-15 years old. Would it be terrible to invite just the 18+ kids? Here's the extra weirdness-the 3 younger kids are adopted. I would be horrified if they assumed that we didn't invite those three because of that!! Thoughts?