There have been a lot of follow-ons to that too. People complain that kids sit their butts in front of video games and grow fat, but forget the reason. It's not that 'kids these days' are born lazy. It's that now that neighborhoods do not generally have a number of adults home at any given time, kids are strictly forbidden to go outside after school. They are under strict orders to lock themselves inside but no 'rough housing' (meaning running around engaged in physical activities).
Gee, I wonder why they don't exercise? What ever could be getting them in the habit of chatting online when they could walk two doors down and talk face to face?
If we as a nation want kids to value physical activity and going outside, we better fix the screwed up work/life balance until there are responsible adults at home again.