So first of all, go look at the Netherlands. The idea that you can't buy in bulk without a car is nonsense.
Even when I was child we had a little cart for the bicycle (or just pulling) that you could put a gigantic amount of food into.
Second, unless you live literally right in a city center where I would advocate outright banning cars, nobody is forcing you. And even then, if you need to move, there is likely some special thing you can get to be allow for that to happen.
What I want is for drivers to pay for the actual cost of space, and infrastructure (and pollution and sound and traffic) that they are causing. So if you are rich, then yeah, have a car, do your big box score shopping run and go buy 50kg of rice and store it in your underground bunker or whatever.
However, as a society, building a society where 20% have a car, rather then 80% is clearly a good thing, from virtually angle level you look at it. And even those people that have a car, maybe go from 4 trips a day to 0.5 trips a day.
If I weren't allowed to have a car anymore, then it would be forced on me, since I wouldn't be able to buy more than I can carry in one trip anymore.