Gum Chewing
Chewing gum is banned on Disneyland grounds. But they aren’t just trying to spoil kids’ fun. They need to ensure that kids don’t put their chewed-up gum on the rides, the architecture, and anything else.
But the more important reason is so that no one chokes on gum while on one of the rides. Safety is their first concern, and they aim to make sure that everyone is alright.