What if you have 5 homes (with 5 different ISPs)? Is each a household or are the collection of people households?
What if you have friends who are basically family who more-or-less live with you? Are they not part of the "household"? "Sorry, Bob, while you maybe my daughter's godfather and donated a kidney to me, you're now going to need your own Netflix account because Netflix wants to mash the 'pump corporate profits' button that has been a primary contributing factor of both embarrassing wealth transfer from the poor to the rich and inflation post-pandemic."
5 homes is likely rare, but I don't think 2 is extremely uncommon. Like vacation home where family might spend summer or working at different city than where family and coming home for weekends. In Finland over 10% of people have a cabin and in average they spend 79 days of the year there (https://suomenkuvalehti.fi/kotimaa/yli-puoli-miljoonaa-kesam...) though I'm not sure how common it's to have electricity these days.
Most people would consider someone with five homes as very rich, but you could get relatively close with only moderately excessive wealth and a divorce. Each parent owning a vacation home, perhaps.
What if you have friends who are basically family who more-or-less live with you? Are they not part of the "household"? "Sorry, Bob, while you maybe my daughter's godfather and donated a kidney to me, you're now going to need your own Netflix account because Netflix wants to mash the 'pump corporate profits' button that has been a primary contributing factor of both embarrassing wealth transfer from the poor to the rich and inflation post-pandemic."