If people were smart and lived in houses without ceilings, there wouldn't be a lot of ink used up telling about indoor pollution, I'll wager. People do things indoors they don't do outdoors. Knowing what I know about how most people cook, it's fully understandable that some lasting trauma to the human population of a house would occur even long after the broccoli was burned black that night that Mom and Dad had the hellacious argument. People cook indoors because it's convenient, no doubt, although I have been observed using my gas grill outdoors in every month of the year. They're noisy and overbright most of the time.
Kids are a major pollutant in most American homes.
Not only are they personally noisy, they're also messy eaters, sloppy dressers and sling toys all over the place with abandon. Cosmetics are also a major source of indoor pollution. They're so insubstantial, you can create a cosmetic dust storm just by breathing. Cosmetics are sold in teeny tiny little containers that drop behind beds, dressing tables and vanities. If you were true to the computer revolution, you wouldn't have this problem.