Why do some people dance well and some people dance badly? What are they related to? How should I practice? More detail

The sense of dance (related to movements) has a lot to do with personal understanding. If you want to talk about how to practice, it's time to exercise. It's a long process.

Dance skills also take time, not a short time to practice. It needs the guidance of the teacher.

Dance experience, just perform more.

Soft opening is definitely the usual level of effort.

So dancing is a long process, not that you can practice it well.