In big cities like Tokyo you can just go into the subways/train lines and demand is high enough that you'll only wait maybe 5 or 10 minutes. Not to mention that it's faster than a car most of the time (due to no red lights or the like).
And if you really need A -> B directly, there are taxis.
In the same cities owning a car is also inconvenient, it's not like you can park anywhere.
The fact that public transportation sucks in a lot of cities is not due to intrinsic qualities of these solutions, it's a consequence of shitty urbanisation planning that makes it hard to offer a good public transportation strategy.
And if you really need A -> B directly, there are taxis.
In the same cities owning a car is also inconvenient, it's not like you can park anywhere.
The fact that public transportation sucks in a lot of cities is not due to intrinsic qualities of these solutions, it's a consequence of shitty urbanisation planning that makes it hard to offer a good public transportation strategy.