The reason you can drive a car everywhere is because people put roads everywhere. People are capable of putting safe bike and walking paths and public transit infrastructure everywhere too. Asphalt and gravel roads are not naturally occurring. You being tied to your car if you want to “go anywhere” isn’t a feature of cars it’s a construction as artificial as the car itself
The “freedom” that comes with cars is also possible with other things. Car manufacturers have brainwashed you into thinking it has to be this way. There are places in the world you can leave whenever you want on a whim and go wherever you like on transit or on a bike. This function is not unique to cars. Cars are just the only thing in many parts of the world that get any attention from those funding the infrastructure.
Expanded public transit and bike paths and train service and walkable cities and towns mean freedom. Cars do not need to have a monopoly on freedom.
Get yourself a granny cart for your big shopping trips. Also some cities have companies that have hourly rentals for cars or vans. And you can get more stuff shipped to you than you think. Also in places where bike infrastructure is good, cargo bikes are a thing.
Yeah I go grocery shopping a couple times a week and occasionally get an Instacart order on top of that because there’s a target and a little grocery store near some other places I go and I can pick up pantry staples there on the way home and either go out of my way to get specialty stuff on one of my days off or get it delivered. I’m almost never carrying more than what two grocery bags and my backpack can handle. Like I often just buy veggies and eggs and milk on my way home from church or a friends house. In a car-free existence you can just casually incorporate errands into your daily routine. You don’t need to go out of your way to go to the grocery store because there’s one right there
Genuinely the biggest barrier to being able to walk or bike or tale transit everywhere is the design of our cities, almost every issue people come up with that has do with using one of these to get around can be fixed or dealt with, we use cars not because they are the best way to move around but rather becaus they are what our cities are built for