most sports are played by kids !! :P :)
About 30 million kids does sports in America.
America Undercover - 1986 Kids in Sports The Price of Glory was released on: USA: 10 September 1986
There are many magazines available for kids. Some of the popular ones are National Geographic Little Kids, Sports Illustrated Kids, American Girl, and Twist.
Generally, soccer (football, en Espanol) is the most popular sport.
Kids usually enjoy most indoor sports. The current most popular ones include indoor soccer, racquetball, squash, ping pong, gymnastics, bowling, and many others.
Soccer I would think it would be baseball just because that is the sport that has been around the longest.