Not everyone has the option of driving - older drivers, people w/o cars or with unreliable cars, injured people, young people, people w/ disabilities, people afraid of flying, etc.
My parents will drive anywhere - that works for them because they are road warriors w/ a reliable vehicle, 2 healthy drivers, and they want to take the Scooterhound w/ them (we don't believe in flying pets).
Grandma Scooterbug has not been allowed to drive for years. Gramma Scooterbug never even learned how - she had a husband or 7 kids to drive her, or she took a train. Grandpas Scooterbug had severe restrictions put on them before the keys were taken away.
I will drive anywhere that is within 12 hours and take a plane beyond that, but I really enjoy not driving on many occassions - trains rarely get lost, you can drink and safely ride a train, ride a train overnight, take items on trains you can't on planes, read a book or take a nap etc.
If I took a train from FL to NY or Cali, it would be a scenic trip, but it would be great to take a train to NOLA or have a seasonal train to ATL.