Working public transit would have gone a long way towards this kind of immersion. It's a damn shame too, because the system technically exists, and there are even placeholders for stations.

I think there were a lot of resources put towards getting the whole damn thing to run on last gen XB and PS4 which just made so many things impossible, and obviously you dont really want to have a couple versions out there without feature parity. They ended up with it anyway, but I think we may have seen a more complete product on launch had those dev resources not been needed for the older consoles.