Tell me, for everyday use, what is the advantage of Celsius? It's a linear scale, just like Fahrenheit, and the whole base 10 thing does not apply.
There are two relevant factors - being fixed to a physical property, and the range of typical use. Celsius has a slight advantage in that freezing is zero, but this is no big deal, By the time Amercans are 5 years old they know that water freezes at 32 degrees. The fact that in Celsius water boils at 100 degrees matters not at all in everyday use. There is no inherent advantage to that - it does not make Celsius easier to work with. And it is ultimately arbitrary.
The range of typical use is much better for Fahrenheit than for Celsius. The origin of Fahrenheit is irrelevant to this fact.