I was going to make a similar comment about rural areas. Self-driving tech is not going to replace private ownership nearly as easily as it will in urban areas.
I also think the 50% ownership rate you see in NYC will drop significantly with self-driving cars. You'll still be able to ride your favorite car when you need to without having to own it, maintain it, and pay for a parking space. Seba might be slightly influenced by the fact that he hasn't owned a car himself in 5 years. But 50% of the male population in So Cal are car guys. Pretty sure that's a proven fact.
I expect car ownership in NYC to decline a bit, it already is the lowest on the continent, but my point is that NYC is the closest to the ideal Seba is envisioning and you still have around 50% car ownership.
Rural poor will need to own cars because there will be no other options. Traveling between cities in this ride sharing economy would be difficult. There may be some services that do it, but the urban ride sharing services aren't going to want their cars tied up for many hours on a one way trip, especially if odds are the car will be dead heading (running empty) back. People with resources can rent a car for that purpose, but the poor can't rent cars, they don't have credit cards.
I've considered the same, but only for those made of aluminum or composite materials. Steel still rusts in EV's, suspension parts, of any material, wear out, metal fatigue eventually takes it's toll. So I agree that EV's will outlast ICE's but not to the degree he does. I also think there will still be a high percentage of people who want and can afford their own individual vehicles.
Aluminum has its long term drawbacks too. Put steel under load and as long as the load isn't too much for the structure to hold, it will sit there and hold the load until the steel corrodes too much. It could hold the load forever if well enough maintained.
Aluminum doesn't do that. Put aluminum under load and it will start to crack over time. Eventually anything made of aluminum is going to collapse under its own weight. Aircraft need regular structural inspections and repairs if the aluminum is beginning to crack. Some old aircraft worth preserving have had large parts of their structures replaced.
Most aluminum cars will be retired for other reasons before their structures fail, but it will be something that will plague old Teslas eventually.
I think a substantial fraction of the population is going to continue to own private vehicles (hopefully Teslas) for quite a while. Speaking of cold season, snow will be another challenge.
"We're sorry for the delay in the ride you've summoned. Our contracted snow removal provider has a backlog and has not yet serviced the vehicle depot nearest your location. In addition, our all-wheel-drive vehicle category is currently oversubscribed."
As for large scale evacuations (wildfires, impending hurricanes and floods, etc.):
"Due to mandatory evacuation orders, we regret to inform you that our minimum vehicle occupancy in your area is five persons. To conserve luggage space, please carry only the most essential items. Further, be advised that all of our vehicles must leave the area and no transportation services will be available if you choose to ignore evacuation orders."
Autonomous, privately owned cars can provide for faster emergency evacuations. The cars can drive much faster and closer together on highways, but you have a point in a ride sharing economy, getting out of the way of a hurricane becomes a lot more difficult. The traffic jams evacuating the affected areas are so bad because you have a very high percentage of all the operational vehicles in an area on the road at once.
In mass transit calculations, there are certain densities of population needed to make certain modes worthwhile. Light rail needs a fairly high density, buses need less. If the population is below that density, the cost of building and maintaining the system costs more than people driving private cars.
There are buses out here on the edge of our county, but they only run a couple of times a day and they are mostly empty. I calculated that it would burn less fuel to have six passengers drive Priuses instead of those 6 people ride the bus, and that doesn't take into account the wear and tear on the pavement from the heavier vehicle or the other costs of running the bus.
Autonomous ride sharing lowers the density needed to be profitable as well as the cost of running the system, but there still are costs involved and there still needs to be some kind of density to keep the system afloat.
I also think the slob factor is going to put some people into private cars even though they cost more. I once had a gig for the Seattle area's bus authority (King County Metro). As a perk, I had a free bus pass. I tried using it, but it took longer to get to work and there were sometimes some unsavory people on the buses. The last straw for me was when some drunk guys were riding the bus and decided to use the back of the bus as a urinal. The stuff was flowing down the bus. The hem of one woman's skirt got wet and some got on my shoes too.
People do things on public transport they would never do in their own vehicles and all it takes is one slob to mess things up for everyone. When people know a human is watching them and is physically there, people are less likely to do things. In the case of that bus, it was running mostly empty and all but the drunks were in the front of the bus.
When there isn't a live human there, people feel more emboldened, even when there are cameras. The guys who monitored Seattle's bus tunnel via camera had all sorts of stories of things people had done down in the tunnels. They were caught on camera and a fair number were later caught by police, but it didn't stop them in the moment.
Cars can be cleaned after someone does something in one, but it will never be the same again in many cases.
I think private car ownership will go down as people who aren't as easily grossed out switch, or those who can barely afford a car now switch. But anyone earning enough to own a car will have at least one. With autonomous cars, some households will be able to get rid of one car and have the car do more work dead heading between tasks.
I think a lot of these people who are predicting a zero car ownership future are underestimating how inconsiderate and slobby some humans can be. It's overall a small percentage, but a few slob's can mess up a lot of the transit system. Mass transit seats tend to be made of non-absorbent material for a reason.