Let's not forget that this begins earlier. Yes, you've seen them: The two or three year-olds in a stroller staring at a device and never once looking up. And qu

Let's not forget that this begins earlier. Yes, you've seen them: The two or three year-olds in a stroller staring at a device and never once looking up. And quite often paired with one or more parents also on a device "out for a walk".