LA it depends on when your required to produce it i guess. I mean we need to produce either a licence, proof of age card (issued by the liquior licencing commission) or passport if you look under age and want to buy achole or smokes
The police CAN ask you to produce ID on the streets but you dont have to talk to them if you dont want
Lastly the police CAN force you to produce a drivers licence when driving a car (or you can be charged with driving without a licence)
Out of intrest you used to get 48 hours grace to produce your licence if you didnt have it on you but they are changing a that law so that you MUST produce your licence
The medicare card has to be produced when getting medical services under medical care
Oh and lastly a combination of ID (including licence, medicare card and whatever else) are required to open a bank acount or access centerlink
As for voting NO ID is required, you just have to get your name signed off a list
So i guess it comes down to how the card would be used