Peoples are addict of it.. They have loosing social and personal gathering because of such online platforms and it making good amount of valuable data: user database, their behaviour and other personal things easily available if not analysed and controlled carefully by the USER to anyone who have (Hackers) access to facebook and coming for their own sundry benefits.
"EVERYONE SHOULD and MUST THINK WHAT IS THE USE OF IT TO REMAIN ON FACEBOOK ..."
Facebook is a great site for social networking. That being said, some applications are scams which compromise your security and sometimes it can be hard to tell which these ones are. You also cannot monitor what your children do on Facebook, it is entirely possible that they can be talking with anyone in world, or seeing things you didn't want them to see. Overall, I trust Facebook, (I also don't have children).