It may have started that way but not anymore. You can viably replace car ownership with ride-share and spend _less_ money each month than being a car owner. Many people do this, it not just luxury.
I think that is only viable in places where car ownership is prohibitively expensive already. A short trip is easily $10, and then you still have to get back. Do that every day and you’re spending ~$600/month. If you live in an area that isn’t parking constrained (most of America!) owning a car can be much more affordable than that.
Uber and Lyft both have commuter arrangements that cost more on the order of $2.50-3.50 a trip. Mainly focused on the GGP claim that these services are strictly luxury.
