Where I camp I don’t usually get much of that and it doesn’t bother me if they stick to the perimeter of the site. If they came right through the main part of my camp I wouldn’t like it, I’m sure. But I don’t recall that ever happening. My DW’s the pied piper of kids and we sometimes get them in our camp. That doesn’t bother me either unless they want to use it for their playground for the day. I don’t want to get paranoid about the property corners of the camp site. I’m much more hostile about people crowding me in stores.