@Tiffany-And-Andrew0
This happened to us several times and now I specifically ask about children when they inquire, request or IB.
Then if they show up with a child I remind them that no one under the age of 12 is allowed on the premises as a guest or a visitor.
They don’t get in until they get rid of the kids. I’m not refusing entry to the adult who paid the bill, just the unauthorized extras.
I haven’t had to evict anyone who had already gotten in lately but I guess I would tell them to leave immediately while I stand there and watch to make sure they do.
We have had some horrible brats in there, one of whom was apparently psychotic. I saw him walking around with a box of matches, flipping them into piles of dead leaves near the house.
When I asked his mother to deal with it she sighed and said that she had tried but he just kept doing it so she gave up.
I told her that if she didn’t take the box of matches away from him within five minutes he was going to eat it.
They were on the road within an hour. Incidentally they were “guests of a guest” who had not asked permission to bring them.
He got 24 hours notice.