The US already has a completely separate model where we send yellow busses to pick up and drop off school kids which involve buses going to a large fraction of US homes 4 times a day 180 days a year for minimal expenses that’s free at the point of use.

Nothing stops you have adding express bus routes, thus allowing busses to work for yet another population. Further, bus networks are inherently cheap as long as they see reasonable ridership numbers it’s more economically efficient than cars.