This is pretty much delusional. Most people are dependent on ride sharing in SF for even menial tasks.
When I did the math, if I lived in the city it would be cheaper to use rideshare everywhere and rent cars when needed, than to own a car.
So yes, taking muni for 2.50$ or using an electrical scooter for 3-4$ makes sense to me. Or even walking. If it's 2 miles that is about 20-30 minutes which ends up being the same time as a Uber.
The typical American owns a car that is probably a number of years old and drives to the grocery store to buy food which they cook at home.
Yes, people in those cities are mainly rich Yuppies that don't mind throwing away money. Everywhere else I always try to remember that most people (70% I think) wouldn't be able to cover a 400$ unexpected expense.
Please be respectful while engaging.