One thing missing from this entire conversation: I personally signed up for Facebook at the age of 14. In fact, my friend made it for me and I took it over after he successfully harangued me into using it. I never, as an adult, consented to this statutory data rape.
This is something really important to consider: Should Facebook be allowed only for 18+ people? If I remember correctly they allow 13yo and up to sign up and I don't think they have the legal abiliy to consent to this level of data sharing
