1.) The 0-32-96 °F range covers much better the range typically experienced by humans than 0-100 °C.
2.) It's more dozenal than decimal allowing for easier mathematics (even when stuck in a decimal number representation system like we are).
3.) For "non-human" fields, you are probably better off anyway using a scale starting at the absolute zero. (The triple point of water seems like a good candidate for 100 degrees ? Or maybe a value directly related to log 2, e, kB ?)
In those cases, Kelvin is customarily used with the same degree size as Celsius with 0 Celsius corresponding to 273.15 K. (There is a corresponding scale for Fahrenheit degrees but it's rarely used.)
To be honest, humans are likely able to adapt to scale when talking about the weather, or how hot the room is.
The reasons the US should move to metric are: - The rest of the world is on metric - It's better for science and engineering
I'm not suggested moving is easy, just that I for one would like it to be attempted.
And on the other hand, for body temperatures, tenths of °C as a level of resolution is just right, whereas integer °F would be too coarse.