[DiThi]

> Wouldn't the hassle in coordinating things across multiple countries be much higher?

Not much more than across US states. https://en.wikipedia.org/wiki/Schengen_Agreement

(although as someone else commented, it's not easy to get trains going through more than one border).

> Or ignore it and wait for automated bus services.

Buses won't reach 330 km/h (210 mph, speed of trains made in my country, Spain).

[6t6t6]

The Spanish new High Speed train infrastructure is, except for the line that connects Madrid and Barcelona, a massive nonsense that has been build only for political reasons. Spain has more km of high speed lines that Japan, but some of the lines have only tens of passengers per day!

It is an economical calamity, for a country already in a deep crisis, that the taxpayers will have to pay during decades.

The AVE is an example of how infrastructures should never be planned and deployed.

[DiThi]

I agree. There were slower but cheaper lines that were just eliminated, and now it's too expensive (for some people living there) to go to some places by train.

My point, though, was about the trains that are made in my country, not how they make use of them.