People care about their data when it can tangibly affect them. Teens know that their parents or other parents can see their data on Facebook. They are pushed to

People care about their data when it can tangibly affect them. Teens know that their parents or other parents can see their data on Facebook. They are pushed to use their real names and in general the context creep is what drives them away. They may not care about the abstract notion of data in terms of data mining etc but they do care about having what they share being seen by people they don't want it to be seen by.