I live in a small city with basically no public transport other than taxis (here taxis have different starting and finishing points and people can get off at any point between the two). For people who are carrying a stroller or using a wheelchair, this is not an option. We can also use services like Uber here but that can get very expensive. I remember when I was in elementary school and we didn't own a car back then, me and my mother had to wake up much earlier in the morning to get to school/work. We had to walk for a long time in the cold, rainy weather for the most part except for a short taxi ride and the taxi drivers never had their heaters on which did not help. Now this is only 5-6 years of my life but my mom had to deal with it for most of her adult life, even when she was living in Tehran (capital of Iran). So sometimes even if you are able to use public transportation, it may not be a very pleasant experience for you. One more point that I'd like to add is that we have been solely relying on our personal vehicles since the beginning of the Covid situation because of health and safety reasons. 5 strangers in a car that is constantly dropping off and picking up new people is not exactly rational right now. But what can the people who do not own a car do?