Fahrenheit does have a wider range of whole numbers to express the temperatures in our daily climate. Unfortunately the digital thermostats I had for years, even one in Shanghai, would step in 0.5 deg increments regardless of it being in F or C. I assume it was using K internally throughout the system, so keeping it in F meant more granularity (68, 68.5, 69 being more specific temps than 20, 20.5, 21 could dial in). And it was noticeable enough to where I'd keep it in F (except one time when I was sick and wanted in between the two possible F setpoints).