Most libraries, perhaps. However, at our little rural library, the kind ladies don't put up with any of that nonsense. I found a book in the children's section that had really objectionable language and content. I took it up to the counter and asked if it was mislabeled.
The librarian took one look and said this trash didn't even belong in the adult section. She checked it out to herself and stuck in the cabinet with several other trashy books. "I just keep forgetting to return these...." She latched the cabinet back up and went back to work.
I just love life in a small town!