Paved roads has little to do with wanting to run “mudflaps”. They are also known as “splash guards”.I'd test them for you, too, but we don't have mud roads here in CA. We pave roads for the times it rains here (and to keep the dust down when it's not raining), and we drive on the pavement,. Even my driveway is paved. I don't understand the "savings" in driving through mud, gravel, dirt, rocks, etc. and needing mud flaps and paint repair and PPF all over simply because you can't afford to pave your roads.
I lived in Missouri for 20 years, and everywhere one went was on gravel roads. It sure messed up the paint just in front of the rear wheel wells. Glad I moved.
I doubt roads anywhere on earth don’t have some sand and grit on them. Sure some are worse than others.
The grit gets kicked up and sand blasts the area directly behind the wheels. There is even PPF in front of the rear wheel from the factory to help reduce pitting. Model Y comes with mudflaps from the factory.
When it’s wet out mudflaps reduces water (dirty water with sand and grit) from the road being sprayed up onto the entire side of the car.
I don’t drive on licked cleaned roads and is does rain here. So I want “mudflaps”.