Wow. Talk about thinking everyone is exactly like you, and only your transportation needs need to be met.
What about the elderly? (Who can't walk the last mile from the bus.)
Or young children? What about a large family that needs a full car load of groceries - you're going to put that on a bus? And somehow carry it home?
Inevitably every single person who writes about public transportation is young and single, or at least no kids, and they think: No more cars, problem solved.
News flash: The entire world is not like you. Getting rid of cars is a complete non-starter for a HUGE segment of the population.