I've never owned a car, and never struggled with carrying shopping/luggage. I guess my lifestyle is kind of different to the typical North American style, where I am not buying large amounts of stuff in bulk, such that I cannot carry it. Instead I wear a backpack and take a few tote bags and buy the amount of groceries etc that I can carry. If I did buy something large like a sofa, I'd get it delivered. I'd probably do so even if I had a car, because the delivery people would be able to help with moving it into the house, too.
> The real way forward is to have electric cars, nuclear power plants, remote work, and maybe this new Musk tunnel thing.
It seems you're looking at this very one-dimensionally, only thinking of exhaust emissions. Cars still produce pollution through tyre and brake dust, noise pollution from tyre hum, and of course the source of power for the engine has zero impact on the safety of a vehicle.
Efficient public transportation + shared cars services/rental cars can help a lot with that for people who can't leverage using a bicycle or prefer not to during bad weather.