Producing more small things isn't usually more efficient that fewer equivalent large things. You can't just will some "pods" into existence that are magically cheaper (per person!) than trams, trains and busses. Also, once you have a system running capex and opex aren't that different - replacing a set number of vehicles per year is pretty much the same thing as operating expenses.
> 5. Housing changes: Garages transform into rooms. People ditch bulky refrigerators in favor of ordering drone-delivered fresh produce in minutes. Drones deliver upstairs not just at street level. Pods become elevators. We've seen all this in science fiction... guess what the enabling technology is?
My prediction is that no one will ever be fine with the amount of noise a "drone" (read helicopter) makes, especially as a replacement for the very noise-free and orders of magnitude more efficient elevators we have right now.