Is this ban actually effective and going to be enforced, anyway? My 15-year old niece just returned from Australia where she reports she was definitely still ab

Is this ban actually effective and going to be enforced, anyway? My 15-year old niece just returned from Australia where she reports she was definitely still able to access Tik Tok and Instagram while in the country. Her similarly-aged Australian cousins thought it was all a bit of a joke too, apparently.