On the East Coast there are more cities with dense populations, so public transit can be effective and car ownership rates are lower.
In the West, many cities are urban sprawls that built out instead of up, so public transit is less effective and car ownership rates are higher.
I wish LA or Phoenix or Vegas was dense living where public transit could be effective, but since they’re urban sprawls and public transit isn’t aa effective as a densely populated city, most people own cars to get around.