I personally don't get judgmental about people choosing not to ride in the winter. In fact I would never try to talk anybody into it, - more because of the difficulty of riding a 2 wheeled vehicle on snowy and icy roads in the dark rather than the cold.

I find it interesting how our minds work though. The same people who are convinced that riding in cold weather is somehow bad for me wouldn't think twice about somebody spending two hours skiing, playing outdoor hockey, or ice fishing in the same temperature. Or spending all day at an outdoor construction site for that matter.

For the vast majority of people cycling is simply a warm weather activity and some can't get past that.