I'm glad to answer your question. Personally, I think university teachers are more popular than fitness coaches, and fitness coaches are more popular than primary and secondary school teachers.

First of all, college teachers have higher social status and more spare time, so they can arrange their own time relatively freely. Teachers in institutes of physical education can also work as part-time fitness instructors in their spare time.

The salary of primary and secondary school teachers is relatively average, and their social status is improving year by year, but it is still relatively low. In teaching, I don't have any leisure time of my own, and I have to attend the training organized by the education department and the school during the winter and summer vacations.

Generally speaking, I think university teachers are better than fitness coaches, and fitness coaches are better than primary and secondary school teachers.