As a society we have developed policies and incentives that favour car drivers, and thus promote sprawl, smog and other pollution, gridlock, traumatic deaths, social stress, waste, higher taxes, land degradation, and and poor population health. So Walter S is right (as we all should be) to be embarrassed that more of us aren't cycling. We all should be promoting or advocating for cycling (or walking or using public transit) in one way or another, for our own and the common good.