From a CityLab online article (April 10, 2020):
What might that mean for the bathrooms of the post-coronavirus world? Americans have already demonstrated a keen fixation with this household feature: In the last 50 years, the number of home bathrooms per person has doubled. One could easily see the lavatory-building boom accelerate further as future homeowners keep the needs of the self-quarantined in mind. And many have speculated that sales of bidet attachments will surge as toilet-paper shortages encourage Americans to embrace this more sustainable alternative.
Alter predicted that disease-avoidance would rise to the fore of bathroom design a few years ago, when he observed the traumatizing effects of the 2003 SARS outbreak on Toronto, which killed 44 people. But home design in general — and bathroom design in particular — has long been influenced by infectious disease.
The modern bathroom developed alongside outbreaks of tuberculosis, cholera and influenza; its standard fixtures, wallcoverings, floorings, and finishes were implemented, in part, to promote health and hygiene in the home at a time of widespread public health concerns.
Boomers Daily 