One doesnt need to know the precise temperature those occur at to achieve the desired result.
Okay if you don't know the temperature of boiling water or care about how hot it is, then I think you just defeated your point for caring about a temperature system altogether. You can get used to Celsius in the same way you can get used to anything else.
And VR, if you don't care about something as simple as the boiling and freezing points of the most fundamental substance on earth, don't whine about people not knowing how to change the oil in their cars.
