It depends on your personal needs, but the fitness instructor can tell you something about fitness, such as what equipment to do, where to exercise, and how much to do each time. It will also teach you how to practice equipment and what is the standard action. Ensure that you can achieve effective fitness exercise within the scope of standardization and safety, and some will arrange reasonable fitness methods or recipes for you according to your current physical condition. After all, the benefits of spending money will certainly be many. If you just practice casually for a little exercise, there is no need to hire a fitness instructor. I hope I can help you.