Not so synchronous coat-putting-onning. And lapel adjusting.
I could swear there's some antlike neurons somewhere in human brains. We love seeing drills like this, armed or not, we love to watch synchronized dance like the Rockettes, we love to put uniforms on soldiers and orchestras and some school students, and baggy pants down around some youts' butts are
de rigueur for that group.
There's something there... that desire for conformity and uniformity.
Maybe it's a component of xenophobia and it's a good thing? A survival trait buried deep within us somewhere?
Terry