It is not normal for customers in restaurants to be lost because of paying bills. The real reasons for the loss of customers in restaurants are:

1. The catering industry has no characteristics and cannot attract people who like food to eat.

2. There is no contract binding, and customers and storefronts are simply "temporary consumption relations".

3. Customers' pursuit of new products and new tastes is tireless and never stops, and no new products are launched.