Children across the globe need certain amounts of freedom to both provide them a break from schooling and to assist them in gaining exposure in various situations. In addition, the culture in Australia is substantially different than that of the United States, where controlling children is emphasized strongly. The Australian culture supports more freedom from conception to death, perhaps caused in part by the geographic location and history of the country.
Freedom allows children to learn and grow from their mistakes at an early age. Yes certain things should be restricted of course to adults only, however limited what a child can experience only hinders their growth and development. So because of their freedom they can have more experience and knowledge whenever they reach adulthood.