I think most people may think this because they are simply reflecting on themselves. They would not bike unless they were forced to by law (in which case they would likely take the bus). I am training to be a physical therapist, and see a lot of different people for many different reasons. One key common theme is that most people do not take care of themselves. They eat like garbage, drink to much and do not exercise at all or little. I have never been accused of having a DUI but anyone that knows me also knows that I really push health promotion. I think drinking really runs a toll on society and am an activist for people reducing the amount they drink. In anycase, good work on the commuting