Comment by roywiggins

One fun thing is that the Grimm brothers did this too, they revised their stories a bit once they realized they could sell to parents who wouldn't approve of everything in the original editions (which weren't intended to be sold as children's books in the first place).

And, since these were collected oral stories, they would certainly have been adapted to their audience on the fly. If anything, being adaptable to their circumstances is the whole point of a fairy story, that's why they survived to be retold.