When my sister goes home for dinner, does my mother-in-law have to pay for the food?

My sister went home for dinner and asked her mother-in-law to pay for it. My sister goes home for dinner and my mother-in-law buys food. It should cost a little. Mother-in-law and sister are both family members, and they are all emotional people in the family. There is no kinship between mother-in-law and daughter-in-law. If you give money, your mother-in-law will feel your concern, filial piety and thoughtfulness, which can better promote the relationship between mother-in-law and daughter-in-law and help families live in harmony. Since my sister came to buy food from her mother-in-law, it is also a kind of respect and care for us, and there is no indifference. We should be grateful and give money for a better family atmosphere.