The bothers Grimm wrote folk tales for Adults and included a story, called Aschenputtel (Cinderella) in their compendium. Grimm´s Cinderella is a much darker story than Disney´s with more violent elements. To begin with, Cinderella is granted her wishes by a tree that grows on her mother´s grave and not by a sweet fairy Godmother. Second, Disney avoids including the father who dies early on while in Grimm´s version he is oblivious of his own daughters´s enslavement by his second wife.
Thirdly, when the prince comes with a gold (not glass) slipper to try it on the stepsisters, one of them cuts off her toes to make it fit. Finally, another scene that Disney left out is when doves peck out the stepsisters´eyes during Cinderella´s wedding.
As Disney ´s target audience are children, it purposely avoided any reference to extreme violence to provide happier images and give children role models of people to look up to, whereas the Grimm brothers were aiming their stories at an adult audience.