The New York Times has a wonderful article about parents getting their kids interested in those old time games such as marbles and hopscotch. It gives the kids something else to do beside video games and television. They can get outside and get some exercise.
I’m not sure we can go back to the ‘Be home when the street lights come on’ world that I remember, but this article does bring up some good points. The article also mentions the wonderful book, “The Dangerous Book for Boys”