Be serious. Its not a class marker, its a nessesity. Even the poor have cars
People clearly chooses the convenience and predictability of cars, and pay significantly to do so
In places where there is greater convenience/predictability from pubilc transit, they choose it. See london/ny
Are cars convenient? Drivers are constantly complaining about inconveniences. Parking, storage, maintenance, repairs, citations, congestion, construction, registration, insurance, the toil of driving itself, negative interactions with other drivers, etc.
Are cars predictable? According to google maps, my route to downtown Los Angeles could be 30 to 150 minutes depending on the time of day, the train is always 50.
It seems you would have to be unaware of alternatives to make those claims.
It is also a class marker. I intentionally lived without a car in West Coast city as a younger man, and I learned to be very selective about whom I told. The vast majority of people would assume that the only reason for not having a car is not being able to afford one, and would judge me accordingly.