We have had long periods of only having 1 car in our household.
Both DH and I are very well versed in using public transport. With or without DC. Indeed, by the time DD was in 6th class (11-12), she had her own Leap card (equivalent of Oyster) and was confident enough that one day when all went pear shaped, she jumped on the bus from school to the train, and train into town to meet me at the office.
I commuted by public transport for years, and am at the point of going back to it after the summer as traffic is a lot worse again this year as people actually go back to offices. I found that paying good money for a decent raincoat that is suitable for the office (I have a knee-length Ilse Jacobsen), decent shoes that don't let the rain in (and keeping a spare pair of shoes, and 2 spare pairs of socks at work, just in case), and having a bag that works for hauling around (I use a North Face backpack for laptops, I am eyeing up an eBags replacement as the waterproofing and 1 zip are failing after more than 10 years of constant use) made a huge difference. And having some earphones to listen to podcasts as I travel. You layer up for travelling when the weather requires it (thermal layer underneath, add a warm hat and gloves (maybe a scarf) to the coat for the actual commute, and if need be, an extra jumper/cardigan under the coat for travel).
We all have bicycles (I am the least likely to use it as fat, unfit and asthmatic). But DH cycles 12 miles to the city on his very happily, he used to bring DD on the back to her creche until she started primary school (and she would come home on the bus with me). He cycles in about half the time it takes me to drive, and the public transport option was taking the same time as driving in Covid but is far less stressful. (And traffic is a lot worse now).
I am the person who is most likely to want to commute by car - I am lazy, and I like the freedom. BUT. It costs more in petrol (and rising), and parking. I don't save any time. Drivers were bad but have become a**les on the roads here since Covid so I am always terrified of losing a front wing as others dive in. And it is rare that I get such a soaking or freezing once I am organised with my gear that it's a problem. (And if I do, I generally have a full change at work anyway because of last minute meetings called sometimes so can shower/change if necessary, and have a hot coffee - or a hot shower when I get home and into cozy trackies is lovely).
We have been back to 2 cars for the past 9 years again. (We shared a single car for 6 years, we only got a 2nd after DD was born but had often only used 1 (if even) and sold the other in the last recession when she was 8, but had to get a 2nd again when DFIL became terminally ill living 3 hours away so we needed 1 here and 1 there on a constant basis for months).
But despite actually HAVING 2 cars, for work commuting - 1 had done the commute by road over the summer (45-60 minutes) but is about to go back to just doing the 8 minute commute to the train station (and I could do that by bus easily) and the other sits at home as the driver commutes by bike. We mostly use them for transporting DD and her gear to sports, doing food shopping, being a Cub Scout leader and hauling gear for that etc.
It's all about having the right gear for the purpose. And the mindset of not needing to drive.