That specific bikes-vs-cars example is actually pretty good, IMO. When I was in graduate school I spent all day in a classroom or in front of a computer, but I was still in good physical shape because I biked to and from the campus each day. I would have had to go into debt to buy a car.
My officemate and fellow grad student had car payments and paid for a gym membership to offset his similarly sedentary day. I used to laugh at that. I laugh a little less now, knowing how much risk cyclists are exposed to from cars, but that problem itself is a symptom of American cities that are built in an excessively car-dependent, car-first way.
My officemate and fellow grad student had car payments and paid for a gym membership to offset his similarly sedentary day. I used to laugh at that. I laugh a little less now, knowing how much risk cyclists are exposed to from cars, but that problem itself is a symptom of American cities that are built in an excessively car-dependent, car-first way.