

Okay so Harry isn't Muggle-born, but he is Muggle-raised as the Hogwarts admission committee probably knows.

Just before Harry's first year, why did Hogwarts send so many letters instead of just having Hagrid or someone go in the first place?


If Hagrid's reaction upon finding out that Harry doesn't know anything about Hogwarts or magic is any indication, everyone at Hogwarts fully expected Harry to already know about the magical world (emphasis Rowling's):

[Y]eh'll know all about Hogwarts, o' course.

"Er - no," said Harry.

Hagrid looked shocked.

"Sorry," Harry said quickly.


"All what?" asked Harry.




Philosopher's Stone Chapter 4: "The Keeper of the Keys"

This doesn't seem an unreasonable assumption, since Petunia's sister was a witch and since the Dursleys were given a letter by Dumbledore "explaining everything":


Philosopher's Stone Chapter 1: "The Boy Who Lived"
