Certainly not. Disney films are made to be oriented towards families, not just little children. There are things you can get out of Disney movies only as an adult, subtle nuances hidden behind the kid-friendly characters and songs. Certainly Disney World and Disney Land are not for little kids, considering the amount of rides that you can only ride if you’re above a certain age/height. Without sounding judgmental about a person I don’t know, in my opinion your mother just needs to tap into her inner child a bit more.