If you want to engage in the fitness industry, you must learn to be versatile. Both exercises and private education courses should be studied, because mastering all-round skills can cope with more courses.
Personal trainer is a fitness instructor who tailors a systematic fitness training plan for you according to your personal physical condition and fitness needs, and gives separate guidance from 1 to 1, which is more targeted.
Group calisthenics coaches lead a dozen or twenty people to do group calisthenics, which is not so targeted and purposeful.
However, as a coach, personal education has sales pressure, and you need to pull students and sales yourself. Yong ying coaches have no such pressure, and all students are arranged by health clubs.