How to divide the kitchen?

Mr. Zao is what we usually call Mr. Zao. Since we are separated, it is enough for the family to invite an old Mr. Zao. This does not need special entanglement, let alone how to divide it. Because our separation is to let ourselves be the masters of our own affairs and independent portals, so we don't have to worry about this thing anymore. How can we distinguish it? So, you don't need to think so much. Of course, just solve the problem of supporting the elderly.