I’ve been there. My daughter had a great pullover and bhc at 4 and 5. Great handstands, bridge kickovers etc. Once she aged out of the preschool class at 5 she was not offered 5-7yr old pre-team with some other girls in her class who were coaches daughters
(Her favorite coach left that gym at basically the same time. Maybe a month before she aged out. He was the reason she was doing amazing) She was very clearly more advanced and interested than a couple in particular but it was a very cliquey place.
She was put in rec classes and I was naive. I watched her lose skills, become so bored in class because she had regressed in what she was working on by years and they refused to allow her to work skills she knew. They would stop her beautiful bhc in the middle of doing them and grab her to spot/help but all it did was mess her up and eventually she lost confidence bc she wasn’t allowed to do them on her own. Rec level was awful. She lost strength, got bored and sloppy and was never corrected. They refused to modify skills for her. She’s 7 and I finally just pulled her from that. We followed her coach that left and trialed at his new gym. They offered her highest level pre-team to potentially be competing in December. She probably would have been dragged along in rec class for years at the rate she was going in her old gym.
I do believe being with similar aged girls will be very beneficial but if she isn’t getting the training she needs it’s a sad thing to watch as a parent. I wish I had moved gyms 2 years ago and not wasted all that time and money on those classes that she was bored in. If you can find a gym that has a younger pre-team working on skills she needs I wouldn’t hesitate to move if her current gym won’t modify.