That's unrealistic, because there are such huge peaks in traffic. You'd need a large number of extra bus drivers only from 7:30 to 8:30 and from 17:00 to 18:00 each day.
Who would want such a job?
A bus cannot beat or even match a fleet of self driving cars if the suggestion is that a bus has to be a cramped standing area.
Given a service much cheaper than Uber is today, the only people using the buses would be the poor and environmentally focused.
IME most of the resistance people have to taking the bus is classism. They don't want to share space with "those people".
This is exactly what I am talking about. They are not everywhere, and they should be.
I prefer buses too when they actually work.
I tend to take public transport a lot more off peak. At peak time I vastly prefer cycling or driving depending on the weather because I find being crammed next to other people disgusting (a failure mode unique to public transport).
Nobody objects to having to share space with a broke working class single mother taking the bus to go clean hotels downtown.
Aside from that, the weather can be a pain in the ass (rain, snow, wind, scorching heat), transferring buses/trains is a hassle, you cannot travel on your own scheduling terms, you can’t swing by the grocery store or run some errand on the way home, travel time is generally much longer unless you happen to live/work right beside an express stop that does not require a transfer, and the list goes on.
It's not classism.
I don't want to be rammed into a bus. I like buses that are at capacity, it's relaxing.
Garage and maintenance costs also increase with the number of buses.