There was no army of laundry ladies going house to house to do the laundry, it was the housewife doing the laundry.
Depends on how far back you go. Until the widespread availability of running water in homes, people often used to take their laundry to other people's houses to be washed. I know this because my great grandmother was a laundry woman, among other things.
But actually, you'll know things are getting really bad when reports like this are written by AI.