It’s not just about dressing up though, is it? My school used to have an author in for the day, doing various workshops with the children. And each class had stories read by staff who weren’t teachers - the caretaker, dinner ladies, office staff, who donated the book they read to the class. Our local bookshop would set up a stall with the free books the children could “buy” with their tokens. According to reports in the local paper, other schools did similar things. Those in the wealthier areas raised money for Book Aid. Surely there aren’t any schools where everyone just dresses up....and that’s it?