Working Out in the Winter

So, not that this is a news flash, but it's cold out in Chicago.  Here is something that I always wonder about.  So, I go to dance class regularly - and I also see a lot of people around my neighborhood heading out (presumably) to work out.

Here is what I see -women in capri pants and sneakers with no show socks or men in gym shorts whilst walking outside in 30 degree (or less) weather - with several inches of bare skin.  What I don't get - why not put an extra pair of long over said capris whilst traveling to and from one's car to the gym?!  It's f'ing cold!!!!  I get it - it takes an extra 30 seconds.  I get it - it's an extra piece of laundry.  But still.  I get it that these men are such 'tough guys' that they can handle the cold for the couple minutes, but the women!?  Come on!

Your thoughts?  Do you put on an extra pair of pants before heading out to work out, or brave the elements?  Do you also not understand these people?