But the point of the reference values is to be… referencable…
How do you reference 0F? Referencing 0°C is trivial albeit not strictly accurate, and 100°C is equally trivial though only accurate to within like 5 degrees.
And this isn’t a theoretical issue, it’s fundamentally useful to be able to double check that a thermometer is at least roughly correct.
But the point of the reference values is to be… referencable…
How do you reference 0F? Referencing 0°C is trivial albeit not strictly accurate, and 100°C is equally trivial though only accurate to within like 5 degrees.
And this isn’t a theoretical issue, it’s fundamentally useful to be able to double check that a thermometer is at least roughly correct.