The way to change “attitudes and behaviours” is through education and real, practical actions.
When I see state governments mandate mask wearing in a car for a solo driver, or saying you can sit in a park and drink a coffee but if it is alcohol you must wear a mask and a myriad of other bizarre rules, then I lose all respect for the muppet who decided these rules. Australians have been treated like naughty children through the C19 response, so guess what, they will behave like naughty children.
The C19 response ceased being about health a while ago, it is now about politics.