D24 got 2 waitlist offers. She declined one, and went on the other but I’ve heard nary a peep about it since.
She seems happy with her committed school, but she would probably talk to/visit the other school in the unlikely event she got off the waitlist. It has some unique characteristics that she probably hasn’t fully mulled over since it never hit the category of “real option”. Or maybe she would just say nah, especially if it drags on past mid-May.