Driving a train must be great fun.
You don't have to worry about steering (since there are no roads), you get to make announcements apologising for delays, and you can shut the doors on people's faces!
Yes, driving a train must be great... mustn't it?

Unfortunately, neither you nor I will ever find out, since it takes many years of training and dedication to become a train driver.
They don't even let you drive the train if you kick down the driver's door and shout LET ME HAVE A GO at the driver. In fact, doing that causes quite a lot of trouble!

But how, then, is train driving taught? There must some way that you can learn drive a train... without driving a train!

Well yes, there is a way! And that way is known as miniature railroad!

By building a complex miniature railroad and mounting a small video camera to the top of each train, a trainee can learn to drive around, crashing into cars and de-railing carriages to their heart's content.

Work on what would become the largest miniature railroad was begun by Paul Beans in 1962. Within two weeks, it was of such enormous size that confused commuters had started queuing at his door, hoping to get to work!
A month later Paul Beans mysteriously died!

The legend of Paul Beans there.