I always thought it was strange when people would say "The automobile represent freedom". I grew up in a "streetcar suburb" and later moved to a big city. So for me, cars were always viewed as an expensive annoyance you might need depending on your life circumstances, but certainly not something you'd go out of your way to buy unless you needed it. But as I got older and lived briefly in a suburb of Houston TX it fin…
Maybe you could say there might've been some redlining too – just put the folks you don't want to interact with in that subdivision over there –, but in all, the problem is that it ultimately becomes: only efficient at one thing, and that's getting to work and back home. And it got terrible even just for that because cars as a means of transport doesn't scale well with population. Then public transit becomes a hack to try to make it work. In the Bay Area and DC, you have highly efficient transit systems that are good for getting to downtown, and pretty much terrible at most other things. In both places, you still need cars for the last mile, when you're leaving "downtown." In the Bay Area, only the Mission District is truly walkable, of all the non-downtown neighborhoods it connects. So now there's car sharing at most of the BART stations. But at least we have them. Not sure if there are any for the Caltrain.