I generally walk anywhere under two miles and avoid driving between 7am and 7pm. Having a means of transportation under my personal control readily available to me is well worth it. Tonight I'm going to go meet someone selling something on Craigslist. It's about the size of a milk crate and weighs >50lb. I could carry it on the subway and do it for free (monthly pass).
Next week I have to get a coffee table. Sure, I could buy one online but I think buying a used high quality one for cheap/free on CL or from a thrift store and having the ability to get precise measurements in advance
I could take an Uber or taxi but it only takes a few Ubers a week to be more expensive than owning a car (if you own it outright).
If your life involves doing anything more than being a worker bee who goes lives by a schedule and pays someone else for assistance with transportation outside that scope then having your own means of transportation is invaluable in terms of convenience and possibly cheaper.