"'I can't stay here.'
He rubbed his forehead: it was prickling again; it had not hurt like this for more than a year. 'You're all in danger while I'm here. I don't want-'" JK Rowling, Harry Potter and the Deathly Hallows 72
Harry Potter is the perfect example of an archetype hero. He is not only willing and adventurous, but endures separation, hardship, and is self sacrificing. He looses his godfather, his parents, and his childhood pet as well. Instead of drowning in self pity, he uses his lose to, motivate, himself almost. He knew from a very young age about loosing the people you love. So now, as a young man, tries to prevent other children from experiencing and knowing the same feeling. He always fights for the right thing, and puts his life on the line for the greater good.