“Were his adventures set mainly in the nonwizarding, Muggle world, Harry would in fact be a far less interesting literary character. His magic would set him apart from everyone else and this magical difference would be the key component in the eventual resolution of all the novels’ plots. But as we saw in Chapter One, magic is not the key component: character is. Because Harry’s adventures are set in Hogwarts, where absolutely everyone (except Mr. Filch) practices magic – and where Harry’s skill is therefore average . . . the qualities that make him great, and able to defeat Voldemort, are the kind of essentially human qualities that readers share with most of Potterworld’s characters.”
– Rev. Francis Bridger, A Charmed Life, p. 47-48.