I read this and immediatly thought of my family. We're in rural Thailand. I gave my son an Android tablet and I provide a wifi Internet connection: he watches cartoons all the time. My wife plays with the tablet sometimes. But neither of them have an e-mail address or any social networking presence. And, frankly, I see no reason why they should. When my wife wants to socially network, she steps outside and talks to the neighbors. When my son wants to network, he goes to school. No Facebook, no Google+, who cares?
Most of the world lives happily without the Internet.