Mnh. It's very much part of daily life- I once took a subway...ah, a normal, non-dimensional one I should note- to another city on a shadow resembling a train. I believe their partner acts as the conductor so to speak.

[Mnnnh. Something about that laugh though...] Considering the focus on 'heroes', and the small number however, I suspect the system from your own home is a little more tightly focused on some sort of goal however...

[Oof.]