Australia also has many issues the US had. Car dependence. They also don't have high speed rail despite their cities being near perfect for it.
Also in Australia the waste majority of the population arrived much later and most were always attached to coastal cities. These cities were dominated by British aristocrat early on and later the British labor movement and reflects the culture of London. Australia politically was a part of Britain in many ways for 100s of years after the US had gone its own way.
The same is true to a lesser degree for the North East Coast in the US, arguably it works more like Britain/Australia but the South and everything West is quite different.
Australia has higher taxes, universal healthcare, higher education, etc etc.
Aussies work together, not against each other