Not only do people not carry much with them, many do not dress appropriate for the weather. Living in the midwest, I now see people year round in t shirts and shorts. Especially in the wintertime! Makes absolutely no sense to me.
I used to be one of those people <img src="/images/graemlins/blush.gif" alt="" />
I've since gotten a little wiser. I don't know as I've ever worn shorts and a t-shirt...unless I was going to work out, but even then I had a coat and hat. In my younger days, I would tool around town with no coat in the dead of winter, but no longer.
Some of the college kids around here go dressed like that in the winter. 20 degrees out, looking like they're going to the beach! Surprised there's not more hypothermia and frost bite around here!