One of my fellow teachers is a CSA reenactor and recently told me a story about the 79th New York wearing kilts into battle, but the aprons kept getting caught in thorns. They switched to tartan trousers, but the fabric still got caught. They then switched to regular-issue uniform britches, which didn't get caught in thorns.

I don't know if there's any truth to the story, but it's interesting to think about.