Regardless of whether I get around during the week to a doctors appointment, my work, friends, etc I still will need a car.
Not being able to buy things in larger amounts means that you get taken advantage of, looking at price per X at your local grocer vs Costco.
Then during the weekend I want to go into nature. You cannot economically have public transportation to all those hiking trails.
Some of you might say: what about a rental for when I need a car? Lots of rental places just flat-out don't allow you to take the vehicle off of paved roads.