Is it polite to help others with food? All the dishes you can reach out for are caught by others, which is redundant.

In fact, it is impolite to help others with food. If there are public chopsticks to help others with food, it is a welcome feeling for guests. It's disgusting if you help others with your own chopsticks. But some people just don't agree with this feeling of helping others with food, because they don't know if this food will be eaten. Do others have such taboos? So I feel like I'm reinventing the wheel, and sometimes it's embarrassing. If it's family, relatives or friends, it's nothing to reinvent the wheel, just to make you eat and drink well.