I went to Disney World and associated theme parks twice in my youth. The first time with my whole family (including both siblings) when I was about 8 or 9 years old. The second time I was about 15 or 16. I enjoyed the experiences, particularly during the first trip. I have no desire to go to any Disney park again, though. I have no children, and such places are not as interesting to me as an adult. I suppose I would enjoy it if I had kids, not so much for my sake, but I am sure parents like the joy it brings many children. Disney parks are extraordinarily expensive.
My European husband has never been to any Disney park. He hates the whole Disney thing and even calls it "Mouschwitz".