Doughnutuman:
Nobody is against early, high-quality training in baseball. Some are simply saying that travel baseball is not the only way to get it, particularly at a young age (they also are saying that travel stardom at a young age does not ensure success even at the high school level, all of which is true).
The reason to play travel baseball ought to be because it is fun more than any other reason, although that, too, is a decision for each individual family.