The purpose of going to the gym is to lose weight or get in shape. If you have enough perseverance, you can skip going to the gym. Then a lot of equipment in the gym can help you lose weight and shape, but because ordinary people lack fitness knowledge and can't use the equipment in the gym reasonably, they may not lose weight and shape, but will cause physical injury, so it is ok to ask a fitness instructor to train in the gym. The fitness coach will arrange a suitable training plan for you according to your personal ability, so that you can achieve the physical fitness you want in the fastest time. Of course, if you are a fitness enthusiast, you can also find some fitness videos, fitness plans, fitness recipes and so on. From the internet, this can also save the cost. I hope my answer is useful to you.