What about the parents? Don't they have any common sense to think that maybe their non-stop crying child is an annoyance to everyone around them? They have a responsibility and obligation in this too. Should the rest of the campground cater to the crying baby?
Same happens in public places. I think it is a punishment. As a parent, "if I have to suffer, then everyone else has to too". Been there, seen it, and most of all had to tolerate it because the "responsible" parents had no common sense.
Edit was a spelling correction.