Yes, but it's the mass car usage that have caused Australian, American and many European cities to spread out to such an extent that walking or cycling or even transit is no longer an option for most people.

Car usage certainly hasn't caused that at all. Many people want that because they don't want to live in the type of environment, or in the type of accommodation you will find, in high density central city living. This has been the case since long before the car was even invented.