And so begins Harry Potter's journey into secondary schooling for mundane students and his entry into Hogwarts. It should be noted, dear reader, that Harry is not only a firstie but is also a member of a magical world as vast and as changeable as its members.
So far Harry has only encountered British purebloods, sentient magical beings in whom wizards have reservations (ie. Half wizard/giant, dwarves, elves, and goblins). This world is as new to Harry as it is to alternative universe of readers. There is no should be or must not be. Harry's new world is filled only with what is possible.
Of course, there are plenty in the magical world who believe they can and will corner the market for the Boy Who Lived. Harry has his own dreams of who he can be and where he can go. As he moves through his education, he will make his own choices about what seems best for him.
