alt Hacker Newsi think the US lacks the regulatory structure and social character that's more present in Japan that make private-public services more successful there.
as a regular metro commuter, i don't think i'd be totally opposed to private transit in LA if it were heavily regulated. but without that, i'd rather deal with all the problems on the metro (stinky riders, drivers switching mid-route, track traffic) at 1.75 per ride, than any of my money go to making Uber shareholders (or anyone who profits by exploiting the "gig economy") more money.
The U.S. used to have a vibrant private transportation industry. The cities killed it. NYC is a great example. The vast majority of the NYC subway system was constructed by _two_ private companies (!) in the 19-teens(!) in competition with each other(!!). The city regulated them and kept them from raising fares in the 20s and 30s. By the 40s the city had to rescue and acquire them because they could not survive on artificially-low fares. And until the 50s there was a vibrant trolley car and bus network between Brooklyn and Queens. Today only the city runs buses, and there is much less capacity per-capita between Brooklyn and Queens.
It's the same nationwide, roughly. There is nothing like Buenos Aires' private bus system in the U.S. because the cities don't allow it.
It didn't have to be that way. But in the U.S. the federal government has no power to nationalize, the States do but are in competition with each other so they don't do it. But the cities?
The cities can totally "nationalize" the transport industry, and they do and did all the way up until ride sharing came along to destroy the hyper-regulated taxi industry. Ride sharing grew fast enough that the cities did not have time to quash it and now they can't without incurring the ire of their citizens.
Now finally comes the ride sharing industry to -let us hope- finally destroy the cities' stranglehold on public transportation.