Not sure why so many people here are almost virtue signaling the act of not owning a drivers license. I agree—It's perfectly okay to not own a car if it doesn't make sense to your life situation. That being said, the ability to drive is nevertheless a useful skill and asset and at least in the United States, does not have a very high barrier to entry (for better or worse). There is so much in the United States that a…
Definitely a useful skill but I disagree there's a low barrier to entry if you are in a dense city. Driving school is expensive (I got my license about a decade ago in Boston, and it was probably over $1,000 in classes) and time consuming. Most people you know don't have cars, and even your friends who do are justifiably wary of letting you practice your new skill in their most valuable profession, something they own because they need it to get to work.
I have seen many of my friends get their permits in cities like SF, NY and Boston and never get their licenses, or get their licenses and never feel comfortable driving solo, and these are not people who shy away from learning new skills in general.