I hope the governments of Australia and especially the UK take note.
The government of the UK is so primitive they don't even have a written constitution limiting their power. They still have a sovereign monarch, for god's sake. The monarch is head of state and commander in chief. The limitations on the power of the monarch consist nothing more than gentlemen's agreements and ordinary laws and procedural rules which could be changed at any time.
Calling it a "constitutional monarchy" is an absurd lie, since there is no constitution.