Good comments, Bryan. There is a strong push for Australia to become a republic, but one of the most contentious issues has been the method of electing the president, or whatever the position would be called. When you look at the circus that precedes the election of the US President, and the massive amounts of money thrown at it, you cringe.
I am a confirmed Royalist, but I also concede that the Queen has little relevance to us here, other than being a figurehead. She has no real power in Australia, and is merely symbolic. However, she does symbolise stability of government through the tried and tested Westminster system of Parliament, which Australia uses.
I think it's almost inevitable that Australia will, one day, become a republic, but whether I see it is another matter.
Peter.