1. Tea is very cheap, so restaurants should not charge money.
If business is good, restaurants can make a lot of money a day. The cost of making tea in restaurants is very cheap, and restaurants don't need to make this money. We know that the profit of the restaurant is very large, and the restaurant can already earn enough money from other foods. There is really no need to pursue this petty profit of tea. If you lose the guests' goodwill to the restaurant for this benefit, it will not be worth the candle.
Second, drinking tea for free is in line with living habits.
Many people in life are used to free tea in restaurants. Moreover, it is normal for restaurants to provide tea, which conforms to people's living habits. People have accepted the concept that drinking tea in restaurants is free. If you want to change this concept for a while, many people can't accept it, and even give such a restaurant a low evaluation. People even think that it is immoral for restaurants to charge for tea. Restaurants haggle over every ounce and the service is not in place. This is not conducive to the development of a restaurant.
Third, guests don't drink much tea.
Some guests don't drink tea very much, and most people will drink tea while waiting for dinner. Moreover, some guests will choose to order their own drinks to go with the food. So the tea charge is really unreasonable. There is no charge for low-consumption products, and how much to charge in the future becomes a problem.