The biggest problem right now is that MANY kids ONLY commit to 1 sport by age 10 which isnt good.
There is a travel league for every sport and many travel coaches dont want kids playing any other sport but that one. Kids will be told that they will sit the bench in their next game if they miss a game or practice due to playing another sport.
My son played in a semi final game a few months ago and one of his teammates missed that game b/c he had a regular game in a different sport. I thought that was messed up