At Davis Diamonds Gymnastics what level do you learn Ariel Cartwheels?

It used to be required to do in level 6, but it is not anymore. Most gyms train them in level 5 or 6. But you never HAVE to have it so some gyms might not bother in working them unless they plan for you to do it on beam in level 9/10. Just wondering... Why do you want to stop before learning an Ariel? If you don't want to do them you never absolutely have to. I am a level 9 and barely have it on floor because I choose to do back tucks on beam! (: