Believe me I'm not trying to make a fuss, but the narrow apron being better at protecting modesty is not the only factor.

If ample back pleats are incorporated in the design an apron of any width can be made to fall between the legs. It is not necessary to rely on the snaps or other features.

I took a long time designing the apron and back pleats in my kilts. I regularly demonstrate squatting for my customers to prove that it is the proper back pleats and not apron width which makes the differance.