Trains are fantastic at getting you from A to B.
You can read a book; you don’t get lost (mainly); you can even sleep, if you’re so inclined.
What they aren’t so good for is getting you to aforementioned point B at time C.
Or even at time D which is one hour later than C. (We could call it C+1 if you prefer!)
It is also less good at guaranteeing you won’t be sat next to E, who smells/talks at you/has a particularly aggressive form of mental illness.
Nor does it stop you from being dismissed rudely by F, the alleged customer services representative at B. (Remember B? It was the destination.)
Anyway, must go, I’ll be at B in five minutes.