We’re taught both metric and US customary units in school. I prefer metric for most things, to the point I have a metric-only tape measure among other things.
However, I’ll die on the hill that Fahrenheit is superior for ambient air temperature. 0 degrees to 100 degrees neatly encompasses the range of average surface temperatures seen throughout the year in the contiguous US.
I never seen a sign or a third digit on a Fahrenheit thermostat. Every time I set my car to metric it adds a tenths digit because Celsius degrees are too coarse.
What car is that, I am european and I haven’t seen even a single time a car show anything in tenths of a degree and besides how the fuck is a thermostat going to get that precise without being a lab one or for a small space.
Several BMWs and a Volvo. They increment by half degrees C. Or one degree Fahrenheit.
I have seen a ford, two mazdas, two opels and a renault that doesn’t increment in tenths.