I think the US is now one of a very, very few countries that still use the complex and meaningless Fahrenheit temperature scale. I can see that if you grow up with Fahrenheit then it is the comparison you are familiar with (hot day is 80 deg and a cold day is 40 deg). However that is where its value, even for people growing up with it, simply ends.
What’s the American word for “utterly redundant and out of date”?
Many people do, especially with elder people. A little tale. Our nurse gives me a regular check up which included a temperature check which is done in Celsius. She then expects me to concert it to deg F. I remind her I don’t need the correction. I expect she think it’s my age at late seventies.
I hadn’t even started school in 1962. But don’t think people were using centigrade then because I remember the summers of 1975 and 1976 when daily the tv and newspapers would have headlines about temperatures being in the 70s and 80s Fahrenheit