How to write a reminder if you don't want customers to bring other people's things to the store to eat?

Consumers have the right to decide whether to buy drinks from catering enterprises. Operators use statements, store notices and other forms to prohibit consumers from bringing their own drinks, and can only buy drinks several times higher than the market price in the store, which infringes on consumers' right to choose independently and fair trade.

Article 9 of the Law on the Protection of Consumer Rights and Interests: Consumers have the right to choose their own goods or services. Consumers have the right to choose the goods or services provided by business operators independently, choose the varieties of goods or services independently, and decide whether to buy or not to buy any kind of goods or accept or not to accept any kind of services independently. Consumers have the right to compare, identify and choose their own goods or services.

In the second paragraph of Article 26 of the Law on the Protection of Consumer Rights and Interests, operators shall not make unfair and unreasonable provisions to consumers, such as excluding or restricting consumers' rights, reducing or exempting operators' responsibilities, and aggravating consumers' responsibilities, by means of format clauses, notices, statements, shop notices, etc. , and shall not use format terms and technical means to force transactions. Format terms, notices, statements, shop notices, etc. If it contains the contents listed in the preceding paragraph, its contents are invalid.

Some ethnic friends are not allowed to bring drinks and foreign food into the store because of their beliefs.