Wow. Seriously.
I can certainly see how it's much better to forgo all sense of ceremony or specialness in all occasions. Jeans and sneakers should of course be worn to weddings, funerals, graduations, five star restaurants, job interviews, church, and to every and all special occasions.
I can also see how caring about my appearance does indeed make me "shallow, elitist, snobbish and materialistic." I also care about manners, so I would suspect that also makes me an elitist snob. If I were to go to the five star restaurant I would know which fork to use and well as how to lay it down to indicate I was finished with my meal. Of course, seeing as I can now go in my pajamas I guess I may as well eat with my hands, as it doesn't matter. After all, no one has to watch how I eat, what business is it of theirs?! That will prove beyond a shadow of a doubt that I am not "shallow, elitist, snobbish and materialistic."
Truthfully, I don't care what you wear. I don't care if you garb yourself in a paper bag. But if you want to talk about judgmental you don't need to look any father then a mirror.