I don't think that's a fair comparison. I live in what many outsiders consider a bike friendly city though in reality it's impractical and unsafe to bike most places. If you're willing to also walk/bus your bike, flout local law on bicycling in pedestrian areas, and bike on major thoroughfares without bike lanes between travel lanes and parked cars then I suppose you'll be happy. That is until you get door checked, run off the road, ticketed, or hit.
Redesigning just the main streets and their auxiliaries would require making tough choices like one way roads that you'll cause you to drive considerably further to your destination. Removing on street parking, when our city already has a parking deficit. Removing the verges where they exist to accommodate bike lanes. On the many streets without verges the options are one way traffic or no parking, mixed use lanes for truck traffic and bicycles is unsafe. I suppose the buildings on one side could be seized under eminent domain, but that just balloons the cost and time scale.
All this is too say that without widespread infrastructure, especially between cities, biking is facing an uphill climb to widespread adoption. People want to be safe on their commutes. They want their bikes and cars safe while they work and shop. Designing And building infrastructure for bikes in cities that have been maximally developed is an incredibly and wastefully expensive exercise in compromise that does little to meaningfully reduce vehicular traffic.