This is one of the reasons why I don't want to make a Facebook until I am 18.
I do not want something that stops me from doing my homework or distracts me from work. I do not want to be stalked. I just don't want to read another goddamn 100-page-long ToS until I can fully understand legal language.
The true face of your 11-year-old prepubescence, or even worse, you might have early puberty.