So you can do makeup en route to work. Or you can rest en route to work. The car self drive at night so you sleep inside (like in those sleeper trains) - you might not need a hotel.
The car can also take a grandparent to take care of grandchildren, so useful for old people.
In theory traffic could be optimized too; taking a random car - instead of your own, or commutting in a group, but I doubt it will happen. People prefer to ride in their own car.
Not having to steer the car can free like 1-2 hours per day (depending on commute time), what is big.
Also work-from-home is quite inspiring future vision. People were talking about it for years and it finally happens, at least a bit. WFH sighnificantly improves quality if life.
Also what happened to drones that can bring parcels to people? When will this happen? On a side note, people from USA seem to dislike / not know "parcel lockers" ( https://en.m.wikipedia.org/wiki/Parcel_locker ) which are very convenient. I think Poland has 20 000 of them already. I dont understand the idea that the courier drops a parcel on your pouch that someone can steal. If you worked from home and a drone brought it (and notified you) then sure. But why no parcel lockers now?