Make them hangout spaces for VRChat and people will spend a lot of time in them.

I'd like a version of Tokyo that is hyper detailed and functioning transit system/lines.

Spend a week preparing for a trip on how to navigate the city before actually going.

I'd like a version of my city without trash and traffic!

You don't need practice for that, all the signs are in English and you just use Jorudan for route planning. Or Google Maps if you must, though it's gotten worse over time.

nb: you may need practice to navigate Shinjuku station

I don't know but then agree. The general concept sounds boring to me but I can see how this can be interesting for many people. For example as a Starwars fan someone must want to fly the same scenes in VR for a few times.

But I think the better is to train AI to generate scenes based on description such as "dogfight in P-51 with German ME-109 in WW2 for 15 mins" and after some computation the player gets to play this game in VR for 15 mins. The problem is how to make it possible at low cost as player will probably just pay a few bucks for such experience (but you can always resell the popular ones many times)

I disagree. VR is cool, but just walking around with nothing to do is not that interesting now.

Do you feel the same way about real life locations? Exhibitions? Galleries?

Obviously nobody is saying "VR is the same as real life" but surely to some degree it's the content of the experience that determines whether something is interesting. Some locations would be fascinating to walk around even if there's technically "nothing to do".

I'm not much of a gamer so my interest in VR has always slanted towards towards the more passive experiences. In fact quite often don't want my enjoyment spoiled by having to complete tasks or solve puzzles just to get around.