Some will say it brings families and lost friends together across the world. This is true, but could be had without the endless streams of gloating, selfies, and photos of what you have eaten.
Recently I have had a child. And I have already decided that the only social interaction he will have will be real-time or near real time. This means face to face, live video, real time chat (sms Hangouts is okay). This shows real interest and attention to the other party in real time and allows true connections to be formed. No endless scrolling through people's lives you meet once.
I should also mention photo albums of actual events will be allowed too.
I know that this will be hard and I will likely fail. But I am going to do my best to help my son learn how to truly interact with people and feel fulfilled with the relationships he has. Never do I want him to feel the loneliness of endlessly peering into others life's from a small window on phone.