One of the best ways to turn young players off baseball is to stick them in the outfield, hit fly balls, a player gets hit in the head, hurts himself, and never picks up a glove again. I see coaches and parents do this even on the Tee ball level. A drill I've done teaching young players has a few steps. First off I have my Tee ball team catching fly balls using the old "Scatch" game comprised of two paddle with a velcro face and a ball. I carry a few sets of this and most young players are familiar with this. After tossing some by hand, I then hit them pretty high and tell them to concentrate on making contact with the ball and the paddle. For all the kids, this is fun. I then move to the next step using a racquetball racquet and a tennis ball. Now tennis balls are normally hard to catch in a small glove so again I tell the players to not necessarily catch the ball but to just make contact with it. From here, I move to the next step with soft covered balls or incrediballs. Players will progress differently but I have found that Progression Teaching makes 100% more sense as a starting point and I have had much more positive results.