And I don't agree that "If they’re really cold, they’ll put on pants or a coat." They won't. They'll just stupidly stand there looking *cool*...and cold.
http://www.washingtonpost.com/news/parenting/wp/2015/01/12/the-long-and-shorts-of-it-whats-up-with-boys-and-shorts-in-the-middle-of-winter/