In fact, everyone needs to keep fit. Aging begins with muscle loss, and it starts very quickly at the age of 35. There is market demand, and now the country is also promoting national fitness, which is still extensive. As far as I know, fruit party fitness coaches have several years' experience as gym coaches and then pass the examination of schools and courses before they can become teachers. Being a teacher also requires experience, which seems to take 2000 class hours.