The Armored Cavalry Regiments were unique. They were combined arms mini-divisions that were often given divison-sized missions. The 3 line squadrons had mixed tank/scout troops, tank companies and howitzer batteries. Many considered them the elite of the armored force. For decades
11th and
2nd ACRs manned the ramparts of the frontier of freedom in Europe.
Ok. "Calvary" replaced horses with machinery, basically, maintaining the fearsome and heavy nature of the horse charge against foot soldiers. So, what, they're are willing to give up the psychological advantage of death steel for flexibility?
I can see how this could be slightly more applicable to municipal conflicts, but there is a lot more open country than cities, anywhere you go.
Thinking aobut it, I wouldn't imagine the lower echelon officers and men think much of this.