Sorry, but it IS self-limiting - not in a sense of being unable to do something at all but in making things much less convenient or straightforward than they could be
Surely you realise there are places where the access to public transport means life is just as straightforward as having a car?
And in fact more so in some situations!
I did go on to say that it’s up to people to decide what works for them. I still maintain that, if you drive (whether you own a car or not), you can still get public transport as an alternative, but a non-driver only has one of those choices, so IS more limited. The effects of that limitation will vary from person to person and may be of little consequence to many. I don’t have a passport, which is self-limiting, but as I'm not bothered about going abroad (and have health issues that would make insurance a bit of a minefield), I'm perfectly happy to live with that self-imposed limitation.
How is it less convenient or straightforward though?
I know the timetables and routes of the 2 buses that stop at the bus stop a 30 second walk from my front door. I know exactly which bus I need to get to work on time and which bus stop goes to which bus.
If I know I need to be somewhere at a specific time/place where a bus/train isn't convenient I prebook a taxi. If it's a last minute thing then I book a taxi on one of my local taxi firms apps which tells me exactly how long the wait is. I have booked a taxi and had it be outside my door before I've had chance to turn off the lights, put on my shoes and coat and pick up my keys.
Again, I did go on to say that it’s up to people to decide what works for them. You’re happy with your arrangements and preparations and that’s great; however, I too have those options available to me whereas you don’t have the ability to jump straight into a car and drive yourself anywhere at a moment’s notice, so you are more limited, even if it causes you no practical issues and you’re perfectly happy with things as they are. If you lived rurally, this may be a completely different matter, though, which would therefore limit your choices of where to live, should you ever be interested in considering living somewhere rural.
It's up to everybody to decide what works best for them (or indeed which options are open to them, based on health and financial considerations), but most people who have the space and money for one would have their own washing machine, shower and computer, so why is a car any different?
Because turning on a shower or washing machine does not require lessons and exams prior to the issue of a licence. Because going online/using a computer takes the same level of aptitude whether it’s your machine or one found in a library.
Driving and owning a car is not only expensive, but requires a skill that doesn't come naturally to many people. Comparing this to using a launderette, where the activity is exactly the same but the ownership of the machine is different, doesn't make sense.
As I said, and you actually quoted, [it depends on] “which options are open to them, based on health and financial considerations”.* By natural extension, I would include a lack of natural aptitude or confidence, fear, anxiety etc. as personal/health considerations.
What I wrote was primarily a response to a PP who wholesale accused car drivers of being “hugely lacking in imagination and organisational skills if they feel that’s their only option.” This came across (to me, at least) as a somewhat self-righteous ‘taking the moral high ground’ statement from somebody apparently believing car drivers as pathetic creatures relying pitifully on their cars as a crutch or comforter rather than simply wanting one of many available useful everyday tools or conveniences in their lives. What I intended to convey was that, if somebody has the available funds and physical, mental and emotional ability to do so, and decides to attempt to learn to drive, succeeds and subsequently gets themselves a car, believing it to be a practical tool to assist them in conducting their life, it’s a completely valid and normal thing to do and not some lack of moral fibre or a bizarre kind of cry for help.