The shopping one has been solved by nearly every supermarket offering home delivery. How many people genuinely need to drive their cars, often with 2 empty seats in the rear, to out of town retail parks?
These aren't genuine objections, they're excuses.
The day will eventually come when failing resources and overloaded infrastructure simply will not permit near universal car ownership and motorised transport for the shortest of journeys, and we can be pretty sure that people won't be starving in their droves, walking around naked, living in houses devoid of furniture. Even today, there are people out there who don't own cars, those on a low income, those who dont have licences, some elderly folk, my Mum, and they survive just fine.