A person who was a storiteller and came in schools to explain his art explained us for stories like "red hidding hood" for exemple or Hansel and Gretel there was sommetimes more than 200 versions, with always littles difference with the areas and so....
(Sorry for my poor english)
He explained us, for fairy tales, and stories in general, also there are versions adapted for anny audience. He showed us for exemple story books about the sames storiy, but make in differents countries and in differents times. Snow white from Disney is not exactly the same than in a story book for kids in the 70's, or in a japanese edition.
Because you will not say or show the same things to a 8 years old child or a 12 years old. And the medium make also the difference. Just think about the book "The Hobbit" from the Tolkien, the adaptation in comics (who was pretty nice), but also the movies from the 2010's. That was sometimes very differents stories.