American civilization is designed to make money - if it can make more money with you sick and depressed vs happy - you know what they will do.

Now that e-bikes will flatten many hilly towns - we can all get outside a bit more.

Towns need to orient their lots to be centered around 1/2 mile x 1/2 mile mixed use zoning nodes where very little parking exists. Single family zoning between the village nodes.

That alone will do half the work of eliminating obesity. Just get people walking 1/4 mile two times a day.

I wish the rich people around 1900 had more financial interest in livable cities than the huge automobile dystopia we all live in now.