Why did Peter Pan steal Hooks treasure?

Peter Pan stole Hook's treasure as a way to undermine and humiliate Captain Hook, whom he sees as a rival. By taking the treasure, Peter not only disrupts Hook's plans but also asserts his own playful dominance in Neverland. This act exemplifies Peter's mischievous nature and his ongoing battle against Hook, highlighting the theme of childhood innocence versus adult greed and ambition. Ultimately, it serves to reinforce the dynamic between the two characters.