Why is captian hook nafter Peter Pan?

Captain Hook is after Peter Pan primarily because of their longstanding rivalry, which stems from Hook's desire for revenge after Peter cut off his hand and fed it to a crocodile. Hook sees Peter as a symbol of his past failures and the loss of his youth, and he is determined to defeat him. Additionally, Hook's obsession with capturing Peter and asserting his dominance reflects his broader struggle against the carefree and eternal spirit of youth that Peter represents.