I suppose I've just gotten into the habit of showing my ID. It's not required.
As someone with a non-Anglo name, at security/role/other checks etc where my exact name is required, it saves a lot of time versus spelling my name out vocally.
For early voting they did require ID. I presume for making sure I was in the correct electorate since the venue I went to was doing multiple electorates at the same time.
However previously, when voting on the election day my name has been crossed off a physical list.
As someone with a non-Anglo name, at security/role/other checks etc where my exact name is required, it saves a lot of time versus spelling my name out vocally.