Do you need to show ID if you're young to buy alcohol? What do the people who don't drive use? In Australia, I don't drive and so don't have a drivers license,

Do you need to show ID if you're young to buy alcohol? What do the people who don't drive use? In Australia, I don't drive and so don't have a drivers license, so I get a 'Photo Card' instead. I was actually able to trade in my expired learners drivers license for free to get a Photo Card (well, I could have if I didn't have an outstanding fine from... not voting)