Ok, that may be a broad statement, but I base it off empirical evidence: I see them all the time. ALL the time. Political rallies, religious holidays, protests, military drills, Tuesday -- all good reasons to have a parade.
You know what else is a good reason to have a parade? Having extra Uncle Sam Mickey Mouse and Winnie the Pooh costumes lying about.
I like how the guy in the blue jumper is as confused as I am.
P.S. I am working on part 3 of the napkin story. It'll be out in the next couple days, but this will hold you over.