When you send your child to play on field, at that time you provide them with the correct protective gear as per the requirement. The same should be followed while using internet or Facebook.
The public policy representative of Facebook, Nicki Jackson says that Facebook has prepared special privacy settings for the users below 18 years.
The setting ‘Everyone‘ is not open to users below 18 years of age, and even if they choose this setting, still the account would not implement the settings. The account would be open to friends, friends of friends and people belonging to school or college.
Even the location(‘Places’ Feature) of minor users would not be seen by everyone, except their friends.
Be AWARE, be SAFE!