[toolcombinator]

I don’t mean to be rude, but your theoretical “1 monopolistic player” goes against practical experience.

Let’s look at how privatization works in for example Europe.

One (private) company owns the infrastructure (the actual railways) and private companies pay them for usage.

The same private companies make bids on operating a particular bus or rail system, in some cases competition is open, and anyone can start a new long distance bus service.

So you have (for example) Dutch companies running bus systems in the UK or Sweden, or German railway companies running trains in Denmark or the U.K.