I merely used California as an example of where biking could work . I’m aware that in much of the US it wouldn’t work. Biking will never be a viable form of transportation in low density/low population areas. But in regions where a huge percentage of the US lives, it absolutely would work. Your last paragraph is my point, we are in agreement. I think rather than just looking at the US as a whole, individual regions should be the focus for these kinds of things.

Uh, the US is massive so these types of things are generally state issues, not national ones. Urban California and rural Mississippi have very different needs. Having a national pro-biking policy would never work. Heck, this is more of a city issue than a state one to be honest. I never stated this is a national thing. Some places will never have proper biking infrastructure by default.

California has a dozen cities just like that, aside from SF which is hilly (amazing climate though.) California’s three largest cities have some of the best weather in the US and all of them are mostly flat in the densest areas. They would be perfect.