Presumably cities will need to be rethought too. Cars and trucks will become more systematic in their movements.. Will most streets as we know them become grass

Presumably cities will need to be rethought too. Cars and trucks will become more systematic in their movements.. Will most streets as we know them become grassy walkways for human transit? Do we really need everyone to have a car, and thus access to their building by a street? Just imagine a city like new york with next to no (large vehicle) traffic.. smaller vehicles to ferry packages from larger vein streets..