Why doesn’t compulsory voting result in Australia representing young voters?

[Blue3]

Plus, there is a misconception that everyone is automatically a voter. You have to register for the electoral rolls first.

If this is true, then why is it called compulsory voting?

Because you're required to vote once you're on the roll. Hell, there's a fine if you don't vote.

It's not compulsory though if you don't register to be on the roll...