FH and I are getting married in a very small old "country" church. It'll be a catholic ceremony without the mass. FH has a small extended family with three cousins, with one cousin having three kids under the age of 6. I have a huge extended family with 20 cousins, many of whom have young children. Both sides of the kids aren't very well behaved. I will be inviting all my cousins, but not their children because it's too many, and will turn into a circus along with the expense. FH wants to invite his cousins. I know it's not the proper thing to do, but my mind has already been made up to not invite my sides kids.
My main issue is, the church is so small, there's not even a waiting area or room for kids to go in, and I'm worried that his cousins kids will be talking and crying during the ceremony and it'll be disruptive to FH and I, as well as the other guests. Can we invite his cousins to bring their kids to the reception only?