Sure, that's a great scale if the goal of it is "What should I wear for the climate" and could be fully functional to that purpose with hundreds of degrees of the scale.

What we base scales on are entirely arbitrary and meant to be there for a purpose. If that purpose is clothing than it's succeeding at it's job.

The Fahrenheit scale is just based on a person saying that's what they felt like was absolutely cold and what was hot based on personal feelings and marking thermometers which ones on the market often didn't even match each other. It was for the people as an emotional barometer to the temp. Celsius is definitely a scientist one which picked a standard but why water? They could have picked so many elements or compounds but had to specify what ocean's water because they aren't all equal. It's all arbitrary. Dance in the nonsense.