I apologize for the extremely late reply, but I didn't have Internet connection for a while since the bill was just too expensive for us to pay at the time.
Any way, it's not all that surprising if someone told me their neighbors in the U.S. don't know how to speak English because there are awfully a lot of foreigners here (it's the U.S. after all) and some people come here illegally, but that's beside the point.
I'm actually not interested in teaching the English language, but teaching English literature and possibly composition if I have to. Language is a whole different concept and actually a different degree too.