Here are some links that may help.
Note the Royal Caribbean and Celebrity sites are down for maintenance today,
https://www.google.com/search?q=cruise+ship+weddings+australia&client=tablet-android-samsung-rev2&sca_esv=575557852&source=android-home&source=hp&ei=3dc0ZemhHO-i2roP-oqYyAk&iflsig=AO6bgOgAAAAAZTTl7a2qBAWgVE3Q8QkQwmd1Js4ZGKfY&oq=cruise+ship+weddings&gs_lp=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&sclient=gws-wiz
One thing that always gets me is how few people doing the traditional dining actually attend the MDR on the last night, almost like they are avoiding their regular waiters.
I wasn't too worried, as we only want the once a day service but I do specify that I would like it done in the am. Most times the stewards are fine with that.
I wasn't part of it but there was a wedding party bride and groom and a few others, on one our cruises, most of the family members were meeting at one of the ports for the wedding ashore and the reception. Our ship missed the port. They did have the honeymoon anyway.
I would assume that a few taxes being minimilised by supplementing staff wages with gratuities would include company tax, payroll tax and the staffs' personal income tax but then I am not an accountant or am up to date on other countries tax laws.
I just like to cruise and tips are part of the fare for me.
I think people should do what they wish about tipping or not, it is up to themselves. I don't think we need to worry about who gets those tips, or how it is distributed once we pay the tips, or whether the staff or the cruise line is doing the right thing, that is for themselves to work out.
I was aware of the tram terminus, the ABC had a great program on the history of the Opera house, if it wasn't for an Election and the big push by Cahill, it would never have happened.