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.
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.
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.