Yeah i learned that a helmet are a must in AU when cycling, not a bad idea, though here in Denmark thats not the case just a recommendation, only for e scooters - e cycles and mopeds are a helmet a must, and of course motorcycles. funny enough a quad bike registered as a car,,,,, no helmet needed,,,,,, which just show how stupid the law making branch are here.
So you can do,,,,, as fast as your quad bike can do,,,, like +100 km/h on the motorway,,,, wearing speedos and sunglasses and nothing else.
Even more funny to me, proper attire for motorcycle drivers are not needed, just the helmet, so you can go driving wearing speedos + a helmet and do 130 km/h on the motorway.
My country are NOT governed by sanity in any way, the agenda are something different and unknown to me even if my imagination are rather good.
But ! they do claim they have the interest of the people in mind, but i will have to quote a Australian and say "Nah need garlic change in government"