Shorts are virtually a national dress in Australia, they are totally acceptable as workwear.

I wear shorts in messy situations or when visiting workplaces where I'm not prepared to wear a kilt.

I have a friend who works locally in the office of a large factory who wears a kilt all the time, he tells me that if he ventures into the factory he is required by regulations to wear overalls.

My point is this, that while we might see wearing a kilt all the time as a worthwhile goal, it may not always be appropriate.

I can think of some really dirty situations where i wouldn't dream of wearing even my oldest kilt (painting for example).

I imagine stonemasonry would be pretty hard on a kilt even with a leather apron of some kind.
I wear either shorts or a kilt all the time. It is nice to have an alternative.