In my opinion, people, especially kids spend too much time in front of a screen. Sure I work online, play playstation 2, and watch some tv. But I balance it with reality. I go swiming, driving, and other fun real sports whenever I can. There is a problem today with overweight kids, and I think one of the reasons is lack of physical activity. The risk of injury from outdoor activity is nothing compared to the health risks from obesity. Nature is beautiful on tv, but nothing can compare to seeing it in person.