But, should that be a determining factor for rising 3rd graders because they dont want to focus on one sport at 8 years old. If that was factor then that should be listed in the criteria factor for the team.

So I am really just guessing at the possible purpose of the developmental team, and a logical reason why they wouldn't select your son under the circumstances you describe.

My older two kids played soccer, with my oldest daughter playing in college (from which she just graduated). I totally understand the issue of kids wanting to play multiple sports, with soccer (and probably some of the other skill sports, like baseball) pushing earlier and earlier for kids to be single sport athletes. I can see both sides to the argument, but regardless, eight is too young to have to choose a single sport, although I would also think he could play another sport while playing travel soccer, at least at the younger ages. My kids did until about 8th grade.