It’s very clear that the student visa system is being abused by many and that many universities, addicted to international student fees, are only too happy to play along.
If an individual student from a reputable country wants to come here as a genuine student and study a proper course, that is one thing. But what we’re seeing is dubious private colleges and universities essentially running an immigration service rather than an education service. Thousands of international students come here every year, often with their entire family, with no real intention of studying. The student visa system has lost its integrity.
Once international students finish a course, they should be required to return home before they apply for another student visa. They shouldn’t be allowed to simply hop between them whilst staying in Australia.