What if someone shows up that did not Rsvp?

I had people show up that i did not expect. for instance there were people i invited their children and they said they wouldn't bring them.... they brought them. i totally understand if plans fall through but it is just another level of anxiety i guess. i just made the most of the situation because i realized i think that table had an extra seat anyway. i would ask your caterer what the plan is if there are extra people who may show up

I'd reach out to anyone who has not RSVPed by your deadline, and say, "Hi! I'm wondering you are able to attend our wedding? I need to provide a final headcount to my caterer on X date, so if I don't hear from you by then I'll have to mark you as a decline."

This happened to my best friend at her wedding. It was like a family of 6 that never RSVPed and just showed up. I guess her father handled it the day before (she had a wedding out of state, so they showed up to the hotel the day before), he told the venue there were 6 people who weren't scheduled to be there but showed up. The venue set up an extra table for them and it wasn't an issue, she just had to pay the difference for it. Maybe ask your venue how they handle this kind of situation?

I contacted every single person before the wedding to confirm if they were coming or not.

Like everyone else said I would make sure to contact everyone who has no RSVP'd just to make sure. I think caterers and vendors are usually prepared for something like this to occur.

My wedding is next month and I still have 17 guests who haven't RSVP'd; I refuse to keep asking so I decided to alleviate the stress of "folks just showing up" by adding them to my final headcount for everything. Since we're not serving alcohol, a little extra food was still in my budget.

The expectation of folks not doing what I want is always expected (especially family ).

We have called and checked in with those that have not RSVP’d and expressed to them that final count was last Tuesday and we needed to know. Some didn’t respond back. However, we are setting the tables for the amount of people that they are charging us for (we are under their minimum); there will be availability, but once we hit that number we will not be able to accommodate. With Covid the team at the venue has someone checking everyone in. We will be providing a list and that list will note “extra”.

We did check in with everyone who didn't RSVP and it was amazing how many "maybe" answers we got - um, no that isn't how this works! Of course I said it more nicely and put a firm time on when I needed a yes or no, but it is like people don't understand how a wedding works. We are actually wondering if there are people who weren't invited will show up. My FH has some elderly more distant relatives who heard about the wedding (and were not invited) who told someone they were "thinking" of coming. Ahh... again, not how this works. I have no idea how the venue will handle it, but we have a coordinator and the venue coordinator and I have no plans on thinking about anything like this on the day.