If you rarely drive using a service might be worth it. However if you drive more often it will be worth having your own car because it is ready when you want to go. I have a second car that I rarely use - but if I got rid of it a uber is 15 minutes away when I want to go, and the local rental car place is always sold out if I didn't reserve a week in advance.

Even if I'm using a service, someone needs to make the cars the service uses - the car manufactures are not going anywhere, they just get a different customer.