MyGovID. https://my.gov.au/en/about/help/digital-id

> myGovID is the Australian Government’s Digital ID app which allows you to prove who you are when accessing government online services. You can choose to connect your myGovID to your myGov account.

Because parents are not equipped to defend their children at scale from the threat actors mentioned. Again, high support of these measures from the public. You’re blaming parents for the digital equivalent of tobacco and alcohol. Victim blaming has no place here.