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’ll tell you, it’s the opposite of what you think, big number awg is absolutely tiny and 0 or 3/0 is huge. It’s used in the UK sometimes for the thickness of sheet steel, mainly seen it for ducting, it’s just an ass backwards measurement systems. They take the diameter in inch then take the logarithmic of it, https://en.wikipedia.org/wiki/American_wire_gauge
Fascinating how they would come up with something like that!