Like a cautious parent, Facebook is giving teen users new freedom despite risks. For the first time, users under 18 can post publicly. The logic is that other sites don’t restrict kids, teens are getting more web savvy, and young celebrities want a voice. This could let minors publicly share things they’ll regret, so they must manually opt in to public sharing and confirm they understand the risks. Somewhat disingenuously, Facebook frames its blog post about the change as being about adding more protection for teens. It starts off saying that now when people age 13 to 17 sign up, their posts to the News Feed are defaulted to “friends only” instead of “friends of friends (fof)” as they were before. That is important because many people don’t change their default settings, and if you have thousands of friends with thousands of friends, the fof setting would share your posts to more than a million people.