Why is rail any different? If one train goes down on a subway line, all of the trains after it are pretty much stuck too. A few lines can sometimes route around

Why is rail any different? If one train goes down on a subway line, all of the trains after it are pretty much stuck too. A few lines can sometimes route around pain, but that's kind of rare. In general, public transportation is just pretty inconvenient. (Now, I like walking so it's a bonus for me, but I can see how it's not for everyone.)