That's a problem with the infrastructure and transit policy, not the technology. I can't afford a car, where I'm at I'm able to take a train to cities nearby, I can take a free shuttle to the train station or bike because it's not very far. In the past in the US at least there were more train and tram routes, when cars because more prevalent cities stopped developing the infrastructure, but if done properly it can be superior to driving.

nowhere near where I live

Even the Netherlands or Japan have many places where only travel by car makes sense. We will always need some cars. Maybe your situation is like that. But your personal situation doesn’t dictate whether or not it makes sense for society to build a lot more trains, which is what we’re talking about.

Also, describing how much less convenient trains are for you presently than driving is kind of missing the point. Everyone already agrees that train lines don’t exist to service many places. We’re not talking about what exists now, but how things should change.