All children, except one, grow up.
You read this and you probably automatically think of Peter Pan. And most of us grew up thinking Disney created Peter Pan.
Nope. This is another example of a public domain works that Disney used to build it's empire. They did it the right way and the way works in the public domain should be used. They wrote the story using the same premise but in a way that made it unique to them.
Good for them - - - and bad for them for making it hard for others to do the same. I discuss this in a previous post.
I'm using this as another example of how you can take a story from the public domain and make it your own.
You can even use the original Peter Pan story as long as you don't infringe on the Disney version. Best way to do this is to read the original story and use it for reference.