Frankly, if you've never lived in a place with clean, reliable, fast trains, you probably would be disillusioned and would never go to the train life. Or if your public infrastructure is deemed "for poor people".
Back to my original point, it's a cultural problem.
The only people I hear clamoring for trains in non urban areas are younger online folks (mostly living in urban areas).
I rarely hear anyone ask for it in suburbia.