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.
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.