Train services are basically always hugely subsidised by governments. They could not survive against cars, buses and trucks if they weren't. The subsidies in Switzerland are eye-wateringly high for example. It's effectively a form of government planning designed to boost city/worker density as governments and others believe offices full of workers yields large benefits, and trains are the highest density/capacity form of passenger transport by far. So if you want ultra-dense urban cores you need a lot of trains.
But do we actually need those? Governments sure haven't acted like it this year. Now big corps are eyeing their expensive city centre HQs and wondering if the real estate is worth it, the workers are seeing how much they save when they aren't being forced to pay for the very expensive rail tickets, the managers are seeing that many (but not all) workers are happier without the time sucking, cattle-car commutes ... and governments are basically having to give up on the fiction that rail companies were private in order to keep them from going completely bust. But how long can that be sustained, if travel patterns have been permanently altered? No dense urban cores = few commuters paying business rates for rush hour travel = even worse economics for trains.
Off-topic I know, but I'd only like to see this if the tolls were reasonable with respect to the maintenance of the affected stretches of road. $0.50 per car per mile more than pays off a typical 4-lane interstate in a year, yet tolls are often an order of magnitude larger and drawn out for 20+ years.
https://en.wikipedia.org/wiki/LKW-Maut
From Wikipedia:
> Germany's LKW-Maut is a toll for goods vehicles based on the distance driven in kilometres, the emission category of the vehicle and the number of axles.
It's meant to compensate some of these damages caused by high weight. If I remember correctly, road damage scales at a power of four of axle weight. It's billed semi-automatically (wireless stations along the road + device in the truck) and you don't even notice it as a normal driver.
It's a bit harder with cars, since there's a lot less infrastructure to track usage, and people would rightfully balk at the invasion of privacy.
Of course its not that simple, because driving is subsidized(I would prefer every road to be a toll road and get rid of the general taxes that used to go to roads)...but you get the point.