Vaccinations passports might be a little pointless only if you think that the purpose is to indicate that said person won't catch it nor won't transit it. Quite useful if you think the purpose is to (i) save them from themselves ie make sure they have taken some basic precautions (ii) not displace an ICU bed from a cancer or trauma patient, if and when they return home needing hospitalization (iii) not transmit COVID to some poor immuno-suppressed bugger in hospital when they drag their unvaxxed asre home and have to share a ward.
I have not heard anyone half-sensible say/write something other than once we are at 70% to 80% vaxxed then the unvaxxed can basically get shafted and mother nature can pick off the weak ones. Even so-called Chairman Dan said stuff to this effect about six weeks ago. Right now however we have a huge slice of the population that have not had prior opportunity.
It is perfectly clear that there is a significant % of case fatality in Aus amongst not particularly vulnerable pax not lucky enough to secure a vax, and that nowhere in the world has any authority managed to keep COVID in a simmer state. You either crush it, let it rip, or sit hopelessly in purgatory like NSW. Happy happy simmer state does not exist. Welcome Glady and friends to the reality, truly sorry for 5m people or so in Sydney that lost a full six weeks before it clicked.
Just get to 70% and 80% vax and then social and political pressure will deal with the rest. We're all sick of this and the vaxxed will not tolerate 2022 being restricted whatsoever. First hand experience says that certainly that is more or less where the CoA thinking is at in Aus at the present time, and probably from here on in.
So stop bashing 43 and DD from boredom; we're not at a point where let-it-rip is yet wise, but it is coming and it will happen. Until then it will all be sh*t.