Why does one wear a hat at all? To keep the sun out of your eyes, or the weather off your head, like when you're outside, doing military stuff, or whatnot.
I'm glad the garrison cap worked for you, but I hated their look and uselessness. Diversity is our strength.
It is only for when you are dressed up isn’t it?
In the military when you are dressed up a hat is part of bringing the uniform and the look together, along with easily recognized important information, and you don’t salute unless your head is covered.
I never did military work while wearing the class A uniform, for me it was dress up for traveling.