I wear a kilt almost all the time. I work in my shop (making swords mostly, but also other things, forging, grinding, and heat treating) wearing kilts that I made here, and sometimes my hemp Rkilt.

I generally do not do mechanic work requiring me to get on the ground kilted, and not because I fear anyone seeing more than they should. I live in rural Iowa, and the closest neighbor is quite a ways away, compared to town anywhere. I just don't fancy the thought of sliding around under the vehicle and potentially getting rocks and grass in places I'd rather they weren't.

I keep a pair of coveralls in the truck in case of roadside trouble whilst kilted. Not needed so far, but changing a tire while in a nice wool kilt is not high on my list of wishes.