Re. banning cars...
I thought long and hard about getting rid of our car, but I can see a lot of downsides and situations where the car has been extremely useful and irreplaceable.
I don't know how I would be able to go to the local recycling centre to dispose of stuff that doesn't get collected by the council... wood, rubble, large cardboard boxes, metal, broken electric appliances etc... or go to the garden centre and buy a bag of soil
During lockdown, a car has been extremely useful to go to the supermarket and shop for a full week, as opposed to the two days we were used to shop previously... that might have even kept us alive...
With public transport out of use, I have no idea how else we would be able to travel... even with public transport on, many places you might want to visit are off limits
The ban cars rant is the usual London-centric view of folks that are used to have everything by their door step, live in microscopic flats with no garden and therefore don't need to buy or dispose of large items. They only head out of their neighbourhood for leisure on their bicycle, otherwise they are enclosed in their social bubble. Trains go everywhere from London, so why would you need a car?