It is kind of funny how different gyms approach the age issue with the USAG girls. The coach at my daughters new gym seems to kind of time it to where his optional team girls are in middle school when they hit optionals. They practice later and don't end till 9 which is a little late for elementary school girls. We are fairly new so I am not sure if he has ever had any younger girls on the optional team. My daughter is 10 and the youngest level 5. Most of the others are 11 and in fifth grade. Her coach generally keeps the girls in level 4 and 5 for 2 years but they do a lot of uptraining and perform very well. My daughters old gym moved her up very quickly so we will see how this new approach goes over!!