I have read almost all of the original versions of these stories.
Okay, but the Brothers Grimm didn’t actually write any of the fairy tales in their collections; they were carefully-selected (and, in some cases, heavily-edited) versions of oral folktales of Germany. Same with Perrault (although he rewrote most of his to include plonkingly obvious morals) and Beauty and the Beast. Disney’s is just the latest in a long line of interpretations of tales as old as time.
The interesting thing about those oral tales is that there is no one definitive ‘original version’, and even folklorists and historians can only trace tales to a general region or historical event. What’s even more interesting is that sometimes, variations of the same basic tale structure will pop up, on opposite sides of the planet, at the same time, with no apparent connection between the cultures they come from.
People think that stories are shaped by people, when in reality, it’s the other way around.