Mom! Not mom, mom. Only when the children of two families get married can both parents be called in-laws. My mother is talking about the mothers of both children and respecting each other's mothers. On holidays, there are visits to each other, banquets are prepared at home, and married children are also walking around.
The more children, the more in-laws. I am busy cooking and sending it to my in-laws to catch up with the Chinese New Year. It's too noisy!