I feel like age 10 is the age where mental blocks and fears start happening, especially if they have progressed to L7+ because the required skills become more dangerous and are definitely scary for me to watch, imagine being the one actually doing it. I have had 2 family members where their daughters quit right around that age because of their fears. One even took her kid to a therapist that specializes in sports and mental blocks and it was no help. After COVID, it took DD1 (Age 10, L7) awhile to be comfortable doing giants, BHS entry vaults, and backwards tumbling on the beam. She is finally doing all of the above consistently without wanting a coach right beside her in case she needs a spotter, but it took 2 months to get comfortable again.