Maybe it’s just because I didn’t grew up with Disney movies, but with the theme park (Efteling) versions of the stories (that are the original stories, with a better ending).
It’s not that I want every story to end up sad, I really do like happy endings, maybe it’s just that the Disney movies are almost the same stories, with other characters: Snow White was singing and the prince heard her and he came to her, the same at the beginning of the movie of Sleeping Beauty.