It can be really really crazy busy there. And, by 9, they have decided who their superstars are... we bowed out by age 4 with our ASD/ADHD child.
But, your daughter is showing interest, so let her try it. But just know that it is a very popular activity and very packed. And I didn't feel like my child got any kind of personal attention since they must have seen they weren't dealing with a future Olympian!