Even if that 1 Australian out of 3 either doesn't use BTC or isn't yet aware of the game changing aspects, at least the seed is planted.
I knew about Bitcoin for a long time before I really got into it. But I still had to go through the phase of (1) hearing about it but not understanding it, then (2) a long period of telling myself I should find out more but not really caring, and finally (3) taking the time and getting to the AHA! moment.
Yep, it takes a long time to get people to the AHA moment unfortunately. Slowly but surely, the plan comes together