Our four year old had his first practice game with the pee wee Red Sox team. Minutes before taking the field, the coach announced that he would be playing catcher. "Oh, boy! Catcher!" He has a strong fondness for catchers, even at four years old, so putting the gear on was a true joy for him. He played well for half the game. Because he's so small, the gear was huge on him. The shin guards came up to mid-thigh, and the chest protector came down to his knees. No problem, though.
The coaches pitch to their own team in pee wee league. What I didn't notice until after a while was that he was putting his fingers down between his thighs and giving signals to the pitcher. Amazing.