Potential character names:

Germany: “Fine, fine, we’re Germany to you. You could have called us Dutchland instead of using that for people from the Netherlands, but whatever.”

USA: pointing to people who settled Pennsylvania from Germany “Pennsylvania Dutch!”

Germany: ಠ_ಠ

When it comes to Fahrenheit, there is some merit to the idea - 0 to 30 is a small scale compared to 0 to 100, and unlike Imperial vs. Metric, Celcius has no base 10 system that makes any more sense than Fahrenheit does. . The opposite is true of kilometers and miles - kilometers is more refined since each unit is a shorter distance.

I’d prefer the Metric system, but Farenheit over Celcius for temperature measurement.