I know there are a lot of differing opinions about Harry becoming an Auror after the war, but personally, I understand and accept it. If there’s anything that is characteristic of Harry Potter, it’s the inability to remain uninvolved. From the first book when he refuses to let Malfoy taunt Neville, to the last when he curses Carrow for spitting in McGonagall’s face. These moments aren’t about duty or obligation. Harry sees an injustice, and feels the need to correct it. This point is made quite clearly in the fifth book, when Hermione points out Harry’s ‘saving-people-thing.’ Even in situations where the danger is contained, like the second task of the Triwizard Tournament, Harry feels the need to give his all to keep everyone safe. He doesn’t just protect the world because he’s The Chosen One, the symbolic hero of the world. He does it because he’s Harry Potter, and that’s who he was far before he ever really met Voldemort.