At the ages of 6-9 the signals from the eye to the main station in the brain, when it comes to tracking and following movement are difficult to interpret. A youngster may be able to judge how fast a ball is moving, but not be able to judge its direction very well. Because of this they will be better at passing, catching, hitting, or kicking a ball that is thrown, hit, passed, that is kicked directly to them. It’s very hard for them to figure out where the ball is going and how fast to move to get there is often still difficult.