Earlier quoted context omitted.
I grew up on the Canadian praries. -10C is basically shorts weather. edit: seriously though, anything warmer than -10C you'll definitely see kids in shorts. I go skiing in shorts every year.
Yes, yes, you're an invincible winter god upon whom the temperature means nothing. Let us all acknowledge that and bow before you. Now tell me everyone is doing that, all the time. I also live fairly north, which is part of why I've learned this about Vitamin D in my own research, and I can't help but notice that stores selling winter coats and gloves and other assorted cold gear don't go out of business ever year be…
Just because you're a jerf, doesn't make me one too.
Stores aren't going out of business because it gets below -10 regularly.