4 or 5 years old, depending on her interest, but I recommend folk dance. Of course, when I study, I will find that there will be some ballet dance moves interspersed in it. It will be helpful to send her to a more experienced dance class for a while (don't study for two or three months, otherwise it won't play a role in shaping, but children really don't like learning. If children love learning, they can also develop in many ways. After all, being versatile is not a disadvantage.

If I help you, hee hee, you can give it to me.