This is based on my personal experience, I used to ride trains for travel a lot. I grew up in Europe and lived there for 31 years so this is not based on ignorance.
ok? Your personal experience is not the entire truth and never will be. Japanese trains are on time. Swiss trains are on time. That's not based on ignorance either.
You haven't been in Washington DC traffic, I take it. It isn't like it is a choice between breezing to your destination unimpeded in your car to arrive reliably on time, and taking the variable, unreliable Metro.
Buddy the tube seldom fails for that reason either. Plus some self-driving sauce would reduce their hours to 0. Certain lines in London like the DLR are already driverless (Grade of Automation 3). Most of the other lines are GoA2.