Remember kids... always wear a helmet. (The almighty bikeradar helmet thread)

http://the-riotact.com/bike-helmets-would-remain-compulsory-under-libs/186368

an expert consultant to investigate and assess the potential benefits and situational risks of allowing people to ride a bicycle without a helmet in slower traffic areas such as parks, town centres, shared zones and university precincts

Right so you may only need to wear helmets in Canberra where they are completely useless