A reminder: The US average IQ is a paltry 98.
A visiting company New Zealander told me he still buys gasoline by the Imperial gallon even though his country is virtually all metric. Doing business in Ontario and British Columbia, Canada for 12 years I bought gasoline by the liter. After Ford signed the Metric Changeover Act, Gulf stations in Lawton, OK sold gas by the liter for a time. They switched back to the US gallon. Townes Transfer & Storage in Lawton switched their diesel pumps to the liter for a short time. Employees sang the blues.
In Reagan's first budget he took out funding for the metric changeover office. He said we were far enough along in our changeover momentum would carry us. Ho! Ho! Ho!
I remember seeing a few kilometer signs on the highways back then. The most memorable was:
St. Louis 62 miles / 100 km
... saw that one several times per year.
Some think Canada is a totally-metric country. It's not. They still
officially use the Imperial system in many ways, and it drives their European and global partners crazy.
Not using the metric system are:
Architecture, construction and building supplies
A person's height and weight
Thermostats of heating and cooling systems
Grocery store labeling of meats (per pound).
Railroad mileage
And all those roadways - still laid out in square miles.
Only recently has the BTU been replaced by the megajoule.
There is a push by some in Canada to go 100% metric, but the general population from coast to coast wants no part of it. So the focus has been placed in the curriculum in colleges and universities and activism to change the nation.
Imagine that. Spending time and money on activism for a worthy change instead of drag queen story hour, global warming, race-baiting and the right to kill babies.
It's July 9th, and the Northwest Passage is still closed due to Arctic ice.