It should be noted here that the daily high for a good 1/3-1/2 of America is below 0C/32F/freezing for a good 3-5 months each year. Our weather varies much more significantly than most (not all) of Europe. Even with Fahrenheit, it is not uncommon for places like Detroit to be sub-zero for days without getting into positive temperatures.
I've personally lived in Marquette, Michigan and now live in Phoenix, Arizona and have experience both -40F(-40C) and 118F(47.7C). To me, the 0 = really cold, 25 = cold, 50 = mild, 75 = comfortable, 100 = really hot scale makes sense having lived through those extremes. But you're right, that's largely because it's what I grew up with. And with that in mind, it is extremely unlikely America would ever transition away from it for that very reason.
I've personally lived in Marquette, Michigan and now live in Phoenix, Arizona and have experience both -40F(-40C) and 118F(47.7C). To me, the 0 = really cold, 25 = cold, 50 = mild, 75 = comfortable, 100 = really hot scale makes sense having lived through those extremes. But you're right, that's largely because it's what I grew up with. And with that in mind, it is extremely unlikely America would ever transition away from it for that very reason.