[hankman86]

I would love to learn why some people can self-motivate to exercise while others would need coercive interventions. Such as to build cities in a way that some exercise is inevitable.

Or put differently: is there really nothing that can be done to shift people into being self-motivated?

[Herring]

I think you have the coercion direction reversed. If there was a choice - if people could easily walk places - they probably wouldn’t buy expensive cars.