You don’t need to provide anything. IT’s the parents responsibility. Actually, declining children could be seen as discriminating against familial status. Basically assuming that the parent is not responsible enough to keep an eye on their children and make sure they behave.
I have a Pack n Play now but don’t provide sheets. But for the longest time I had nothing. The place has stairs. A rock waterfall with pond. A drop off embankment. Snakes. Bears. No child proofing at all. I provide nothing except for the Pack n’Play and the only reason for that was for it to be convenient for Fly to guests. Other than that all my drive to guests bring their own stuff. No drive to guest has ever asked what I provide for children.