Write adults only on the invite?

I think you have to know your crowd. Some people will get it, but others need it spelled out for them. I anticipated issues with this so we put "the reception is limited to adults only" on the insert with the reception info. I still had a couple people asking if they could bring their kid. I even had one ask if she could bring her kids to the dance after the dinner was over.

I might be in the minority but I'm putting it right in the invitation, maybe even in bold, maybe even in caps lock (kidding).... Please join us for an adults-only celebration of our marriage. or something like that. I do NOT want kids at my wedding and I honestly do not mind if that deters people from coming. AKA - we'd love to have you there but hire a damn babysitter because I do not like dealing with kids on a normal day, let alone my wedding day. The only kids that may be allowed are my little cousins who are flying in from Cali.

We weren't going to but then my MoH got an RSVP for the shower from a woman and her two young daughters. It was a no so it wasn't a big deal, but that solidified our decision. We initially just had it on the website and then our RSVP cards were going to have the ___ seats reserved in your honor line. Now we have both of those and an "Adults only" line on the reception card insert to drive it home. Luckily we hadn't printed yet (we bought invite kits) so it was an easy fix.

I have it on our website but I don't think many guests have gone to the site. We just ordered our invitations and I put small on the bottom of the RSVP card "adults only, please" I would hope they read that before filling out the card and sending it back.