It HAS to be better to play with higher skilled players. You may cite a rare exception, but an EMO, for example, will NOT benefit young Johnny if 3 of the kids drop the ball. NO WAY, Jose'. Chasing ground balls all day may help your child at ground balls, but the game involves a bit more than that. As for character development, your point is taken. This will build cojones, but not the ENTIRE game or player. When plays go as planned, it is better