sen8or:
If you met President Biden, would you assimilate to american tradition "Mr President", or would you be "Hey Joe, hows it going". Whether or not HRH was "her" queen is irrelevant, she is the queen of england and as such, afforded certain levels of respect and protocol.
For the record, I am no royalist, nor do I think they are particularly relevant to our day to day life in NZ and watch on all this hooplah with popcorn in hand enjoying the sheer entertainment value of it.
I can with great reluctance see your point about using a title. I don't agree with it. As for curtsy and bowing that is pure perpetuation of the false belief in inherent superiority and is disgusting.