Your take seems rather shallow. Accessible infrastructure includes curb cuts (originally designed for wheelchairs, also make sidewalks useable by the elderly, strollers, etc who have issues with a 6" step), audible crossing signals (meant for visually impaired, also alert those who are looking at their phones), bike lanes (meant for cyclists, improve the conditions for pedestrians and residents too), .... The list goes on and on where minor improvements in infrastructure design create massive improvements in public spaces.

I'm raising this in the context of the elimination of cars. The current infrastructure pushes a lot of people into taxis. So if you eliminate cars you either have to expand accommodations or just declare the island inhospitable to anyone that doesn't pass a fitness test.

You can support effectively restricting the wealthiest hub of our largest city to just people who are like you and in your life situation, but it's not going to be a widely held position.