>>> Companies have told Canberra they will deploy a mix of age inference - estimating a user's age from their behaviour - and age estimation based on a selfie, alongside checks that could include uploaded identification documents.

An algorithmic bouncer guesses your age and if he isn't happy you have to feed him proof until he is happy.

That sounds like ID is going to be required, at least eventually. Either that or kids are not actually banned.

Check out the article.

Oh, I was reading it and stopped at a full-page ad I thought was the end. Looking again, it goes on to mention enforcement, but it's still vague.