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.
IMO measurements are actually one of the few areas in life where we are living in a decent timeline because US Customary is basically an affine rescaling of SI Units (affine but not linear because (at least) of x [K] = (x [°F] − 459.67) × 5/9) with exact conversion factors if you’re careful. And then my personal preference for the units I was socialized under become irrelevant for practical work.
5/9 is close enough to half for most purposes, and 30 is close enough to 32 - you can be within a reasonable margin of error converting to F/C with much easier math. Sure it isn’t perfect, but most of the time you don’t need that accuracy in the first place.
No thank you, I like hard math. I didn’t learn all this math to not use it 😆
Just make sure you don’t get too many significant digets in your answer and so get the wrong answer.