Use the right tool for the right job. Fahrenheit helps plan your day, with weather or pool temperatures or whatever. Celsius is for science and engineering. This argument sounds a little like driving a nail with a torque wrench.
I can ballpark C to F. But pressure is never going to happen. Like what's 30psi? 547000 Pa or something? Who the fuck knows. Or you could use bar, with a scale of 1 to 5, lol.
Knowing nothing?! I think Fahrenheit clearly wins as it's normalized against your own perception and experiences. If you ever have direct contact with 100C, it will be less pleasant than 100F.
But my point was that both systems have their uses and I just code switch between them depending on the task. But if you have to have only one, it should be Celsius. I won't disagree with that.