With reference to my sibling comment, definitively yes. I personally spent less on a handful of Lyft rides per month in Houston than I did on insurance alone when I owned a car. Never mind the cost of the vehicle itself, gas, any repairs...
Even adding in the cost of my rail and bus rides, still doesn't come close to the cost of a vehicle.
It's a difference in frequency of use. In Seattle, a lot of my friends don't have cars, but use Rideshare/rentals when they need it. If you are using it a couple times a week, pretty easy to stay under the cost of car ownership when you factor in insurance/parking/maintenance etc.
The cost of owning a car in California including maintenance, fuel, parking, registration, smog check, etc. can be upwards of $10K per year. At least it was for me when I owned a car.
I walk most places and use car share or rent as necessary. I do not spend $10K per year on car share and rentals.
Literally, YMMV.
Is there that much of a difference between owning a car and renting a car or using Zip or having a chauffer (Lyft, Uber, taxis) tote you around? I'd get rid of my car too if I could afford to have Uber haul me everywhere.