it's ok as soon as a minority of people use them, the people that actually need them and majority will use public transportation and bicycle, but it's debatable

it's ok as soon as a minority of people use them, the people that actually need them and majority will use public transportation and bicycle, but it's debatable, since in US/canada most people need them due to sprawl, so I guess there, they should just increase tax proportionally to the vehicle mass/size in parallel with phasing out combustion. People will use cars as before, but using suv's will become more and more tedious and as result road damage and tire pollution will be reduced