Do you even have a functioning passenger train network? I've heard terrible things.
Subways and other forms of light rail are common in large cities and have a lot of ridership. But these are not typically very plugged into broader rail network. Only a few of the major cities like Chicago or New York have shared stations for local and non-local train service. Taking a train between metropolitan areas us very uncommon outside of the east coast corridor.
For my part, I travel between Minneapolis, Milwaukee and Chicago quite often. I've done it once all by train, just to see what it was like. I can park my car at the Mall of America, take the light rail over to the Amtrak station, then the train down to Union station in Chicago, then a commuter train out to my destination in the suburbs. All told... it ends up taking 12+ hours, and costs about the same as the plane ticket down there. The Megabus is way cheaper, and takes about as long. I could just make the 6 to 8 hour drive, which gives me maximum flexibility. Passenger rail face some stiff competition.
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