Part of the Australian national, state, and local health care system is policy to encourage healthy life styles and to discourage, limit, or ban food additives, tobacco, etc.
Back in the 1970s the AU Government was running campaigns such as Life. Be In It: https://www.youtube.com/watch?v=GNjEge3Awl8 (many short segments airing with commercials on TV).
Planning requirements typically require open spaces, walking paths, sporting facilities, etc.
A "healthcare system" needs to be more than simply "immediate care for the injured, sick, and|or dying".
> Part of the Australian national, state, and local health care system is policy to encourage healthy life styles and to discourage, limit, or ban food additives, tobacco, etc.
There's a book or two in the backstory of why neither Dentistry nor Mental Health get the same inclusion in traditional health systems :(
Unfortunately, obesity rates are rising worldwide, including in Australia.