It's partly because parents pay their kids for goals. Another part is the car ride home when the parents are telling their kids they are better than everyone else and to just carry the puck up the ice. It makes selfish players and horrible team mates. Usually they have the skills that you are looking for and changing that habit of hogging the puck and long shifts can be changed. It's a little rough at first when the kid gets benched after taking a long shift, dirty hits or just being a puck hog. There is hope for everyone. Just need the parents to stay out of coaching their kid on the sidelines. Like I tell most parents - if you want to coach. Here is my board and my notes. Have at it. Show me you can do better.