According to Standard 5 of The National Code 2018,
This standard sets out that registered providers of overseas students aged under 18 must meet legislative or other regulatory requirements relating to child welfare and protection. Registered providers of overseas students aged under 18 must provide the students with emergency contact information and information about how to report actual or alleged abuse. Where the registered provider has taken on responsibility for the approval of welfare arrangements for a student who is under 18 years of age (for the purposes of the Migration Regulations), the registered provider must ensure the arrangements for the younger students are suitable, ongoing and appropriately managed until the student turns 18 years of age.
Under the age of 18, a student can live with 21 years or above age of relative, a home stay with approved host family or in a school or college accomodation.
Australian rules are very strict for under 18 student which better for the well being of the students and quite positive thing for the parents who send their kids to study in Australia.
