How many people are needed at the front desk of the gym depends on your work at the front desk, because the front desk is mainly for receiving visiting customers, and the swimming pool provided for customers is also something that needs to be charged. If you want to pay by Alipay or WeChat, or by bank card, it is much easier for you to have these cash registers poss machines, and the front desk can handle it alone. If you still have cash collection business, I suggest you still have two people.