I joke I went from 8 million (New York City) to 8000 (Davis CA) in 1961 just as the University of California there was planning a vast expansion fully incorporating bicycling and discouraging cars. I didn’t have a car so did all my travel by bike as did most others. Especially in contrast to my NY commute (long subway rides or horrible traffic and parking) I saw the power of bicycling to be healthy, cheap, non-polluting, and fun, and it became a lifetime activity and interest. Almost 60 years later I still ride, mostly recreation now, and still interested in promoting biking, especially as part of the solution to our health and environmental crises.