Advantages and disadvantages of public chopsticks?

Male chopsticks are chopsticks specially used for holding vegetables. Not for eating. Sometimes, for the convenience of picking vegetables, everyone has a pair. Many people mistakenly believe that using public chopsticks is to prevent others from infecting themselves with diseases. Actually, this is a misunderstanding. The biggest function of using public chopsticks is to prevent possible diseases from spreading from oneself. For example, if someone in a family of three suffers from Helicobacter pylori, not everyone needs to use it to cut off the infection, but as long as the patient uses it, the infection can be cut off. Therefore, the use of public chopsticks is not to stop others' performances, but to protect others' performances.