Because it doesn’t have as much resolution as Fahrenheit.
There are 180 degrees between freezing water and boiling water in °F. But 100 degrees between the two in °C. So with Fahrenheit we can give mote accurate temperature info without resorting to decimal degrees. And if your response is “learn to handle decimals” then the same argument can be given for inches vs mm.
Because it doesn’t have as much resolution as Fahrenheit.
There are 180 degrees between freezing water and boiling water in °F. But 100 degrees between the two in °C. So with Fahrenheit we can give mote accurate temperature info without resorting to decimal degrees. And if your response is “learn to handle decimals” then the same argument can be given for inches vs mm.