Where I am in Aus we'd be lucky to see 0C once or twice a year at most in the middle of the night in the middle of winter for maybe an hour. I put on long pants or a sweater under 20C.

It’s taught but not really for weather. So while I know the boiling and freezing points of various substances in Celsius, I don’t have instant recognition when I hear a Celsius temperature, I have to convert it in my head.

Kelvin use the same scale as Celsius, the only difference is the zero point. The imperial system and Farenheit sucks and result very expensive and cause even deaths because of wrong conversions: Crushed 2 Mars probes >$350M, flight crash with more than 130 victims because of an error calculating the amount of fuel, wrong amount of medicine respect bodyweight, etc..

https://www.vox.com/2015/2/16/8031177/america-fahrenheit

vs

Metric is Fer socialistcommies...now let me chug this 2L coke!