Fahrenheit and Celsius are defined perfectly with one another so are as easy to convert as using a different number base though. And both were originally defined at arbitrary points making neither one better suited than the other at really anything.
If they used an absolute scale like Kelvin, then sure it would be an objectively better standard, but Celsius has been defined via the Kelvin scale for over 70 years now, the same as Fahrenheit.
If they used an absolute scale like Kelvin, then sure it would be an objectively better standard, but Celsius has been defined via the Kelvin scale for over 70 years now, the same as Fahrenheit.