How old are you? Are you young?
I know schools now push voter enrollment forms and also tax file number forms onto students in class and use their school enrollment information to verify their identity.
There are heaps of people out there that have never enrolled and never voted, secret is if you don't enroll they can't fine you. Despite the law saying voting is compulsory, only after you've enrolled apparently lol
Allegedly there's been thought from some federal governments of going after the roughly 10% that isn't enrolled. Also back 10 years ago there was a huge number of young people not enrolled but they either didn't go after them because it was illegal or they thought it would disincentivize them to even participate, dno.