Why does John darling wear a top hat?

John Darling wears a top hat as a symbol of his character's sophistication and imagination. In J.M. Barrie's "Peter Pan," the top hat represents his role as a young boy navigating the world of adults while still holding onto the innocence of childhood. It also emphasizes the theme of play and the blending of reality with fantasy, characteristic of the story's whimsical nature.