In this country, if you are very rich, you are treated as an individual; if you are poor you are treated as a household.
The "household" idea stems from the view of women, originally legally seen as chattels and later as too feeble-minded to have a bank account without a male guarantor as simply part of a household. It seems that in some parts of government this thinking has continued.
If you are rich, one of you may pay income tax in one country and the other in another. If you are poor the government lumps together "household" income. It even does this when considering a member of that household who is in no way related to you and for whom you have no legal responsibility. If you live together, you are lumped together.
This includes those on Universal Credit. The Benefit for the employer that the worker has to claim. The Benefit that Rishi Sunak saw fit to cut. Rishi Sunak, the man who saw questions about his "households" income as a "smear" while forcing others to ask their "household" to give the government all their private information.
Is there such a thing as delicious ready meals?