As a non-Australian, I came here and even opened the article (only to see "error: Please allow ads on our site") out of curiosity how the teenagers bypass the age check. No details!
The standard answers* are using a (free, exploitative) VPN or tricking image-based age verification. You know, rocket surgery according to Australian politicians.
* Source: am Australian and annoyed enough to follow reporting and discussions.
* Source: am Australian and annoyed enough to follow reporting and discussions.