The Marines are getting just as bad, casing colors of some units, and reinventing old ones. Some squadrons have been active and deactivated multiple times over the past 70 years.
One thing that fascinates me about the history of the army, a lot of soldiers identify with their particular battalion or regiment and not the division, but wear the division patch. Then there is the army patch. Then there are people wearing airborne patches who are not airborne qualified. I used to have several books on army crests, insignia, and patches, back when I collected them. I loved reading up on that stuff.