In Fahrenheit 0 and 100 are defined in random ways, but it ends up covering most of the range of temperature human experience in the environment.
Celsius's definition does not include putting a thermometer inside an adult horse, but the common range of everyday temperatures is -18 to 50.
There are points of view in which imperial units can claim to be easier to use.
In the end the SI are technically better for sure; US imperial units are defined in terms of SI units, according to Wikipedia the pound is "legally defined as exactly 0.45359237 kilograms", nor it is a coincidence that -40F° = -40C°
