So I sent out invites this month and have already gotten back RSVP cards where they have written in their uninvited children. Besides the ring bearers and flower girls, the cut off is ~15, which with my family, nearly all my cousins are older than me, save two who are in high school, and then there are a lot of little kids ages 2-6 and no one in between those age ranges, so I figured it would go trouble free to just say theres no young children. I have vocalized this in addition to specifically addressing every person individually on envelopes and putting the number of seats reserved on the RSVP cards. I KIND OF understand my aunt wanting to bring her youngest (who is a nightmare) as her two older kids are invited, but one is 16 and the other 19. But if I make an exception for him then I should be allowing the 9 other children his age to come. I know I have to bite the bullet and talk to everyone but I'm really dreading this. Any advice on how to handle this delicately so no one gets offended??