Concerned about people bringing extras/kids?

You let your DOC handle it. Those guests will look foolish when there is no space for them, not you.

Usually they will let you know on the RSVP cards if they write more than "2" on the number attending. I would make it clear to your guests by word of mouth that it's an adult-only wedding. If people show up with their kids, I would let your planner/coordinator deal with it.

All of our guests, so far, seem to understand that the names of the people on the invitation are the people who are invited. Maybe it's a know if your crowd is flaky type thing.

Put "___ of ___ attending," with the second blank filled in by you. If anyone has the chutzpah to write "4 of 2 attending," you call them and let them know that you will not be able to accommodate their children/extra guests.

I agree with pp to put the number of seats reserved for them on their rsvp

If someone RSVPs for extra guests or kids, call then as soon as you receive their RSVP, apologize for any confusion (yes, you're being overly gracious by saying that), and tell them you can't accommodate the extra guests or kids. You hope this guest and his/her SO will still be able to make it.

You can absolutely add the "we have reserved __ seats in your honor" line on your RSVP cards and fill in the number for each invitation that you are actually inviting. It will remind most guests to only RSVP for those that were names on the envelope. A couple guests may be bold enough to try to RSVP for more guests than the number you allotted them. If so, you call and clear it up.

Calling to clear it up upon receiving RSVPs will minimize and probably even eliminate the possibility that someone would actually show up to your wedding with extra guests or their kids.

Most of my guests are asking if kids are invited and I tell them no. I also put it on the wedding website. I can't figure out how to put it on the RSVP page, or I would add it there as well :-) We are considering having an offsite babysitter for uninvited kids as a courtesy, but I'm rethinking that idea because I don't want to be responsible for anyone's UNINVITED child!

I agree with the other PPs. Let your Day of Coordinator handle any guests who were not confirmed. If you haven't hired a DOC yet, I highly recommend one and be sure to ask them how they will handle unconfirmed guests.

I did all the right things - addressing invitation to those that were invited, putting we have reserved ____ in your honor etc... In the end several people still brought their kids. I was so mad! Luckily some people that had RSVP'd did not show up and that helped with that. I didn't try to kick anyone out I simply tried to enjoy my wedding day.

Like others have mentioned I would let your DOC handle it. You shouldn't be bothered with that.

I hope this doesn't happen to you or anyone.

We did online RSVP and it only listed the names of people who are invited so it's perfectly clear... or so we thought! Still had one couple RSVP in the comment section that they were also bringing their 2 kids! I didn't fight it because it was only for our wedding brunch that they were bringing them, but still. You think people don't have the nerve to do something but they will ALWAYS surprise you.

That said I have no idea how to remedy this situation on your wedding day save for having someone take "tickets" at the door (Which I've actually seen done once before and is tacky AF). Just try to be as clear as you can upfront. I just told to their face people who know who have kids (ie toddlers) that we weren't inviting kids other than family.

I am doing online closed RSVP and only allowing people to rsvp for the number of people we have them down for. We do not want a bunch of kids in attendance but if people Absolutely have to invite their children I am sure they will reach out to us to see if we can accommodate if they cant RSVP for them. I have been looking for wording to add it to the Website too.

As a few PP noted, I highly suggest putting the "we have x seats saved in your honor" on the RSVPs, this should help to clarify any confusion of people not being sure. If they RSVP incorrectly, you should be able to catch it then.

As for people just showing up with plus ones and kids, my only suggestion is to have your coordinator handle it.

I invited families and i got RSVPs back with just parents and not families.

Sample of our RSVP card design

I'll be filling in the number of seats reserved on each one