No single solution will get you all the way there.
Except for the car, which is why it's such a popular choice. Also no need to worry about catching the next thing, or buying the right tickets, you just get in and go.
I haven't heard of any solution or combination of solutions that would be convenient and work in most cities.
What does that have to do with anything? Should I only care about what's best for me, no matter how much it screws someone else?