Let me add to what I originally said. There are too many teams at the younger ages in Florida!!! Now lets look at the context in which that is stated. When looking at the main reason why lower age teams down here do not go to, or play long into, ASA Nationals the reason is absolutely that there are too many teams. Because there are no less that 10 tournemants a week - 45-48 weeks a year down here there is no reason to move outside your area, or comfort zone. Because of that the teams are not challenged. Players are not challenged for playing time - or positions. There are so many options it is not necessary for teams to think outside their borders. The coaching is average at best at the lower levels and player movement is constant. That is why teams at the 10u, 12u, 14u age groups don't compete at Nationals. Only when players move into the Showcase age do teams change their make up. Those interested in playing major college softball consolidate and the others simply play the local events. We are fortunate that we have MANY ex-college and pro players coaching these showcase teams. They compete with the Az and Cali teams.
Florida offers tons of softball opportunities for the kids and it is great. Little League, Rec softball, local travel, and tournament softball. You are right - the more the better. But the fact remains that down here it is up to the player and family to move the aggressive player into the situation that fits their goals. The days of staying with a team from 10u through 18u is gone down here.
BTW - there are 100's, if not 1000's of Cali teams that are average, rec level at best. They have such a huge population base that there are many, many more top level teams than other states. That will not change.