Some skins have dazzlingly beautiful armor that minecraft's really brings shame to...
see, as examples:
https://namemc.com/skin/2196c6a11cca039f
https://namemc.com/skin/7649a75ab41ae02f
https://namemc.com/minecraft-skins/tag/knight

In the Overlord series, some high ranked characters in Nazarick don't even wear armor (they are just that tough!).
Maybe this option could only be able to squad leaders? To differentiate them from the average soldiers.