At outbacktravelaustralia.com.au we’ve been calling for a special licence for those towing braked trailers for many years. The ABC has just added a fresh voice:

https://www.abc.net.au/news/2023-07-30/accredited-towing-course-needed-for-new-caravan-users-boat/102630908?utm_campaign=abc_news_web&utm_content=mail&utm_medium=content_shared&utm_source=abc_news_web