Then let it be restricted to units that need advertising space, and let the rest of us have functional headgear. Something not used in finer cafeterias everywhere.
Functional for what walking through airports?
The side cap is distinctive, it tells the branch and tops the uniform and best of all, it isn’t a hat that a GI has to figure out what to do with when it is removed throughout the day, you don’t have to find a place to set it or hang it.
The hat is very popular and I think all the branches use it, the military has used it since WWI.