Australia is not the UK.
Yeah we have solar abundance where they have to rely on wind. The rest of what you are saying is a result of resting on our arses and saying it's too hard. Lack of public transport and Infrastructure is a failure of governance, not a factor of Australia's size. The vast majority of Australians live in Urban centers and cities, yet still own vehicles designed for mine sites and barely fit in modern car parks. You just have to drive on the Monash or M1 in Melbourne and Sydney in peak and you will see thousands of new, fresh paint Rangers and Hilux, DMax and Triton, driven by a single driver with nothing in the tray (and probably will never carry more than a slab of beer). If you don't own the mini monster trucks than more than likely you own a full or mid sized SUV, again way more car than the average commuter needs. Goes back to what I said that an affluent nation can afford these luxuries which is more the reason you don't see them in the UK, it's just too expensive and a hassle to own more than one car especially large ones. No where to park it, larger cars won't fit, taxes massively sting big and multiple car households. The toffs still own multiple Benzes and Range-rovers but only the top can afford that now.
Europe has laws now as well that you can't own a car unless you have a registered garage for it.
The UK tried to artificially stump up it's coal industry in the 50s by continuing to run steam trains until it was obvious that diesel and electric were massive factors cheaper and more efficient. The coal industry then had to die a more sudden and violent death than if it had been allowed to die off naturally with the rest of the world, culminating in the Thatcher cull off. Oil is in the same throws now, as major countries reduce their reliance on oil the price of it will increase, not decrease as it has been held artificially low to promote industry. The supply chains will switch to the electrical economy and oil supply will drop off pushing the price up, even though there's less demand. When you think about it, who will invest billions in oil supply chains, such as tankers, pipelines, terminals and refineries going forward with the mandates for change presently. Australia is a good example of being down to bare necessities for oil supply as everyone is waiting on the next thing.