There’s a false impression there, though, because the people you see around on the streets are by definition those that are capable of getting around. Even fit young people sometimes break bones or injure ligaments in a way which makes getting around difficult. If you damage your ACL and need to get into work, how can it be done?

You need a system which has at least a rational level of support for people who are elderly, infirm, or otherwise physically disabled.

This argument comes up every time. Walking or biking improvements can make life easier for people with disabilities too; especially those who don't own a car or whose disability precludes them from driving. Some examples I've seen in the last few weeks: an amputee using a bicycle as a mobility device to compensate for a missing leg and someone in a motorized wheel chair using a bike lane.

> "But what about disabled people!"

We already exempt them from various driving rules, such as parking restrictions. We already have special transport services just for them. No one is suggesting removing these.

I genuinely am just making that simple point. But it does follow that under such a scheme you couldn’t totally ban cars.