In the first edition of Brothers Grimm published by 18 12, the story described is easy to understand and full of darkness and blood, which is really not suitable for minors.
For example, in the first edition of Little Red Riding Hood and Grandma Wolf, at the beginning of the story, her mother always told Little Red Riding Hood not to believe what the wolf said, but Little Red Riding Hood still failed to defeat the cunning grandma Wolf. In the original version, the wolf not only killed grandma, disguised as grandma wolf, but also won the trust of Little Red Riding Hood, so justice doesn't always win.
There is another story, the original is very dark, and it was later adapted into Sleeping Beauty. In the original book, the princess touched the poisonous linen and fainted. But the king saw her beauty and invaded the princess in his dream. The princess left a pair of twins. After the twins were born, they sucked out toxic linen and the princess regained consciousness.
There is also an adaptation of Bluebeard, which is now circulating. It tells the story of a down-and-out aristocratic lady who married Bluebeard, but her wife died for no reason. When Bluebeard was not in the castle, the lady accidentally discovered Bluebeard's secret.
Unlike us, western fairy tales often show children a cruel but realistic world. But these details are beyond the understanding of immature children, so Brothers Grimm is more suitable for adults to watch.