....namely, a certain level of housecleaning should not be considered "a matter of preference."

First, about asthma. (Of course, one doesn't always know when one's guest or house employee has asthma - but that's no excuse for putting anyone at risk for an asthma attack.)

https://www.medicalnewstoday.com/articles/asthma-attack-death#asthma-attack-deaths

Excerpt:

"...In some cases, asthma attacks can be deadly. In 2019, 3,524Trusted Source people in the U.S. died of an asthma attack, which is equivalent to 10 people in every million.

"When airways become severely inflamed and constricted, they cannot deliver enough oxygen to the lungs. Mucus and phlegm can also fill the airways, restricting breathing even more.

"Most people with asthma are able to keep their condition under control by avoiding their triggers, taking medication to control their asthma, and taking medication when their asthma symptoms worsen.

"Around 5–10% of people in the U.S. with asthma have severe asthma, which does not respond to the usual medications. These individuals will need to get a referral to a specialist asthma clinic so a medical team can find the right combination of treatments that work for them. Doctors do not yet know why some people develop severe asthma..."
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And I found out recently that, regarding asthma, it isn't just dust that needs removing (preferably two or three times a month, at least).

https://www.medicalnewstoday.com/articles/roaches-and-asthma

So the next time your spouse or roommate tries to shirk his/her share of kitchen cleanup, dusting, or vacuuming, you can dig up that article.

And it's worth saying again that when you're teaching children to do chores without being reminded, one great system is to exchange chores only every four to six months - or even longer if the kids deliberately do bad jobs or deliberately break dishes. At least with that schedule, they can't say "it's not my turn!"