Earlier quoted context omitted.
Car travel is only “cheap” per trip because people have already sunk the costs into owning, insuring, and parking their car and paying for roads. Fuel taxes don’t even come close to paying for our road networks while rail is lumping all these costs together on a per trip basis.
It's still cheap compared to that. If you want an emergency services vehicles to get to your house you need a road anyway. If you want buses and coaches to function, you need roads. If you want to transport a bootload of stuff more than three times a year you're financially better off paying for a car than renting. If yor kids have school anywhere that isn't walking/cycling distance from your house, then you need a c…
You also have several objectively false statements here such as:
“If yor kids have school anywhere that isn't walking/cycling distance from your house, then you need a car, or two.” Except 100’s of millions of people currently live further than “cycling distance” from their kids school and don’t own a car.
Frankly cars didn’t exist until very recently and society was fine without them.