You're getting down voted but it's actually a reasonable question. Car infrastructure is much more expensive than bicycle or walking infrastructure, and population densities in rural areas are lower and less able to pay for it, while meanwhile rights-of-way and land for things like bicycle paths are much cheaper to afford. Obviously rural areas still need roads for work vehicles like farming, logging, mining, and so on, but there's no reason personal transportation should be car dependent.
You're getting down voted but it's actually a reasonable question. Car infrastructure is much more expensive than bicycle or walking infrastructure, and population densities in rural areas are lower and less able to pay for it, while meanwhile rights-of-way and land for things like bicycle paths are much cheaper to afford. Obviously rural areas still need roads for work vehicles like farming, logging, mining, and so on, but there's no reason personal transportation should be car dependent.