Remember 'go outside and play?'
For younger readers, I'll explain this archaic concept. It worked like this: The child or children in the house -- as long as they were over age 4 or so -- went to the door, opened it, and ... went outside. They braved the neighborhood pedophile just waiting to pounce, the rusty nails just waiting to be stepped on, the trees just waiting to be fallen out of, and they "played."
"Play," incidentally, is a mysterious activity children engage in when not compelled to spend every hour under adult supervision, taking soccer or piano lessons or practicing vocabulary words with computerized flashcards.
...
Thirty years ago, the "going out to play" culture coexisted with other culturally sanctioned forms of independence for even very young children: Kids as young as 6 used to walk to school on their own, for instance, or take public buses or -- gulp -- subways. And if they lived on a school bus route, their mommies did not consider it necessary to escort them to the bus stop every morning and wait there with them.
But today, for most middle-class American children, "going out to play" has gone the way of the dodo, the typewriter and the eight-track tape. From 1981 to 1997, for instance, University of Michigan time-use studies show that 3- to 5-year-olds lost an average of 501 minutes of unstructured playtime each week; 6- to 8-year-olds lost an average of 228 minutes. (On the other hand, kids now do more organized activities and have more homework, the lucky devils!) And forget about walking to school alone. Today's kids don't walk much at all (adding to the childhood obesity problem).