HAHAHAHAHAHA (y) same
i think it's because they have the stereotypical imprint of teens being lazy, getting bad grades, partying, shit like that -_- when in reality all we want to do is read manga and visit a few online frends bc they are better frends then ur real frends and they actually understand you. another reason is that she FEARS you will be an obnoxious sort so she wants to put you in place even if you already are in place.
just some thoughts lol