> Public transportation is typically worse than using a private car. You can't decide when to leave, you pretty much need to plan your trips around public transportation. They don't take you directly from A to B etc. Public transportation becomes effective only when population density becomes high enough.
When PT is done right, it's much more predictable than private cars. Being able to leave when you want does you no good when you're dealing with unpredictable traffic.
Yep. Solid PT runs on a demand schedule too: during hours heavily traveled a train might run every four minutes; during the dead of night it may not run at all or run infrequency, like every forty-five minutes.
And to the GP's point, they most definitely take you from point A to point B. Those two points may not be where you are and where you want to go, though with a solid network it'll usually be within ambulatory distance.
When PT is done right, it's much more predictable than private cars. Being able to leave when you want does you no good when you're dealing with unpredictable traffic.