The younger the kid the easier to break bad habits and teach good ones. So yea, I think if a kid plays rec ball (or rec-like) until she's 14-15, too many other girls have passed her. Unless she works EXTREMELY hard and has a huge amount of raw talent.
Will be 11u next year. The parents know there is no discipline or any form of hard work on the current 11u team (which the kid would be on next year if she didn't go our way)