Many times, when an industry develops well, more and more people will follow suit, regardless of whether there is a foundation or a zero foundation, they will learn in this direction. But when studying, many people will think about it. I don't have the time and don't want to pay the tuition, so I'll teach the fitness instructor myself. Anyway, many majors can teach themselves, but it is very difficult to really learn a fitness instructor. At least from the current data, there are almost no self-taught people.
In fact, due to the diversity of fitness instructor courses, you need to master a lot of professional knowledge and skills to become a professional fitness instructor. Self-study is very complicated, and it is impossible to learn it comprehensively. Therefore, if you want to become a fitness instructor, you need to choose scientific and systematic fitness instructor training and master professional fitness knowledge and skills in order to become a fitness instructor.
I hope my answer can help you ~