I am terrified about giving smartphones to my kids. France's new rule (no smartphones in schools - no exceptions) is genius, and I applaud them for that. What is a supercomputer in your pocket, with access to a significant portion of the sum total of human knowledge, good for, for most people? Playing fucking candy crush. We wish that we, humans, were better, but we are not. So what can we do about it? I have no idea…
"People" have always been driven to play, gamble, game and such. What matters is that the human-knowledge-computer is there and accessible, not that 7 billion people immediately proceed to become Hawking/Feynman/Schopenhauer/etc-whoever clones on a daily fulltime basis. We're playful creatures, as are all well-fed carnivores =)