This thread is so very true. Most people I know know that my boyfriend is from England, but many just assume he's from London. I.e. other person: "Looking forward to moving to London?" "I bet London is so neat!"... Me: "Actually, he's from a small town about an hour outside Birmingham." Other person: Awkward silence "Oh, okay."
Though, I've gotten to the point where I'm over it and I don't even correct people anymore, lol.