But they don’t solve the fundamental problems with mass transit: comfort, convenience, and trip times.
I was just at Disney World and joking to my wife that the park is propaganda to get people to use public transit because Walt loved trains. (You can’t get into the parks by driving. Only the train, bus, or gondola. If you drive you have to park at this giant lot and take the train from there.)
But even within that self contained environment—where land for transit infrastructure is basically free because Disney bought it all decades ago—public transit still isn’t great. Trying to get three kids and all their shit out the door to catch a bus or train, having to fold up strollers, etc., just sucks in comparison to throwing them into a car.
Yes, Walt did want that extra step of separation from the real world. Then Disney realized the logistical problems with it and didn't repeat it for the other parks, but they're stuck with it at Magic Kingdom. (And it also acts as an upsell for the premium resorts that are positioned right next to Magic Kingdom in walking distance.)
Or are you against the idea of “public transportation” (transportation costs shared by taxpayers) and your criticisms of its quality or convenience are really moot because you are ideologically against the premise?