The kid conversation..

We had no kids at our wedding as well except for our own child who's 5 our flower girl who's 7 and my husbands niece and nephew who are 8 and 11. We addressed our invitations as person/s & family (for ex. Meghan & Tyler and family) everyone else just got invites with the person/s names we were inviting (ex. Meghan & Tyler)

If the only teenagers are the groom's cousins, then say "no children" instead of 18+ only.

Our youngest child will be 15 on our wedding day, only one person on our guest list has a small child (aged 6), she will be coming and the venue is providing her meal at no charge.

We had a kid free wedding, and along with allocating a certain amount of seats per invite (we have reserved x amount of seats in your honour", we also added a note on our invitations that said "We love your kids.. but thought you might like a night off! Adults only please!"

We are having a "kid-free" wedding, aside from those in our wedding party (jr. Groomsman, jr. bridesmaid, flower girl, and 2 ring security), and my sister's grandkids (all kids are over age of 6) - if the parents of said kids want to find alternative arrangements for their kids, after dinner, they can, or the kids can stay...Our friends with kids all understand this, and are good with it

I can relate to this! My husband has 4 children ages 10-16 and I have two nieces ages 14 and 15 and we knew we wanted them there but my cousins children ages 4-7 not so much so we just let them know "looking to give you guys a night out without the kiddos!" and it was received well. If anyone did ask we just would have said these are the immediate children to us so that's why we had them there not too mention they were not little ages so I think it is different. Either way, do not feel bad about it and just make sure you are clear : )

Just be upfront with your guests from the very beginning so there is no confusion.

"we have reserved x amount of seats in your honor"

"To allow all guests to relax and enjoy themselves, we have chosen to make our special day adults only. We thank you for your understanding.”

“We hope you will understand our decision to make the wedding children-free, and take the opportunity to let your hair down and celebrate in style!”

“Although we love your little ones, this is an adult only affair.”

We are having a no kids wedding, the way I did it is I put the two persons name with no + 1. Some actually put it on the invitation 18+ only. It's a touchy subject, but you will soon get a lot of messages from Brides and Grooms that had a no kid rule at the wedding and how they did theirs.