If you were in Harry's shoes – an 11-year-old kid who probably never heard anyone utter the word 'magic', and one day you meet this giant person who tells you that yer a wizard, would you have believed him?
Even if I weren't in Harry's shoes, even if I was simply a muggle-born kid who turned out to be a wizard, but I had no information about the wizarding world, I don't think I would have believed anyone who claimed it to be true. And I most certainly would not have agreed to leave my parents for 10 months to go to a school in an unknown location, and honestly? I don't think my parents would have let me go either.
That is why I consider every single one of the first-year muggle-born students in Hogwarts to be incredibly brave, regardless of whether they end up being in Gryffindor, Hufflepuff, Ravenclaw, or Slytherin.
Scroll down to enjoy this week's sirius of magical Harry Potter memes (See what I did there?). After you are done, click here for an interesting discussion about possible headcanon plot twists in the seventh Harry Potter book.