Should I buy food for my mother or my son and daughter-in-law after marriage?

Is this question asked by the mother or the son and daughter-in-law? In short, when it comes to finding someone to judge, I don't seem to want to buy food. Is it a problem of capital allocation or too lazy to buy it? If everyone lives together, the money for food should still be taken by the children, so that both husband and wife will ignore each other and it is not good for the elderly to pay. If you ask who should do it, I think whoever has time to buy it is good. If mom doesn't go to work, there's nothing wrong with going out to buy some food for the children. Young people nowadays don't necessarily buy vegetables. Maybe most of them are expensive and not so good. Mom has experience after all. On the other hand, if the son and daughter-in-law have time, or get off work early, there is nothing wrong with stopping by to buy something before going home. Family need not be so detailed. Discuss everything. If the son has a good relationship with his mother-in-law, there will be many fewer disputes.