It's a conscious choice. Their are those that refuse to commute when it's too cold, or wet. That's fine. Then their are those who love to run an errand in the rain, or ride to work freezing. It makes us feel more alive. It's all about your personal comfort zone and how tough mentally and physically you are. My car battery is dead because I use my bike and to a lesser extent motorcycle so much. I wouldn't have it any other way.