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 also convert, neither system bothers me. I truly believe that the pushback against standard measure is that most people who use metric don’t know the conversions well enough to comfortably use them. Most Americans don’t either, hence their resistance to metric. But once you learn how to convert between the systems in your head (roughly) you can navigate both. It’s like being bilingual
If America adopted the metric system the need for convertion would go away. So there is no need to be bilingual in this stuff… Use metric and that is it. But you cannot do that as a single person. Laws should be passed.
There’s really no need. You’re (collectively) the ones bothered by it.