My FH has a very large family, of which he's one of the youngest on either side, so most of his cousins are already married with kids (we're talking an additional 25+ guests, if the kids would be invited)... We decided to only invite his 4 nephews (considering as immediate family) and 2 other kids (12 and 9 years old) whose family we are MUCH closer with (celebrating holidays and vacationing together) than his cousins (and his cousins' kids). Other than that, it's an adults-only day!
The majority of the people who RSVPed on time and who have kids were respectful of our "no kids" policy (I even had one of my cousins decline the invite because she couldn't bring her daughter, who happens to be the ONLY kid in my family), but one cousin chose to write in his 6 mo old baby (which we planned to overlook) and then another cousin included 4 additional kids (3-16 years old)!!! My FH is really struggling with having to tell the second cousin that the invite was only for the adults, especially considering the 2 non-family kids invited and still allowing the baby. Help!!!