In Australia it’s been law to wear a bike helmet for about the last 35 years. I commute to the trails and with the Magpie season in full swing it’s pretty handy wearing one. The Plovers and Butcher Birds also have ago from the air. Then there’s pretty much every driver on the road trying to kill ya, and pedestrians that seem to just want to walk straight at ya. If none of that gets ya, there is always a stray Roo wanting to jump ya or a Brown snake or red bellies hiding waiting to strike.
Pretty much, everything tries to kill ya, so I wear a MET Lupo so at least me skull is protected.
???? remember it well when I lived in Queensland for a year. However, you may have loads of things trying to kill you but you have a climate to die for (pardon the pun) and amazing trails to explore and ride ?