No. Dressing yourself to suit the situation is a normal facet of human society in pretty much every culture on the planet - how could this possibly be an alien concept to you?
Because no one does it here.
I always thought it was a pointless thing to do, but I still understand it. "You're going to meet with God, shouldn't you look your best for Him?" The answer to that is that God doesn't care about what clothes you're wearing. Indeed, that would be a pretty shallow standard for God to be working under...
Yeah, one has to wonder why God would prefer a suit and tie to an emo band shirt anyway.