You won`t be able to travel without your covid pass.
You won`t be able to shop without your covid pass.
Obviously this will vary country by country (and likely also within countries), with some stricter than others. But if the vaccine prevents transmission as well as infection, then it does make perfect sense to have restrictions for unvaccinated people, who could be carriers and be infecting others. Particularly if the people without the Covid pass are those who have actively refused the vaccine, and are disproportionately likely to not wear masks or conform to social distancing measures.
first thing. those getting a vaccine are not put on any special passport database. so forward looking its not going to be a thing.(sorry to burst conspiracy bubble)
those that want to get on a plane have to have a PRIVATE paid covid test. within 72 hours and done by a certified lab that does database the info and send it to airlines.
so here is how i see other options airlines can try.
those vaccinated/covid tested. if they could provide proof of covid-free they can enjoy business class.. no mask no fuss. and they get a complimentary glass of alcohol.,, getting the real normal airline experience
those who want to be a-holes and dont want to prove they are covid free will be asked/provided with a mask at the gate there ticket will be business class priced. but not given alcohol and have to sit in economy(spaced out seating hense higher seat cost).
if they take off the mask or create fuss. they will be treated like drunks are treated. and once off the plane they will be fined and possibly put into custody for 14 days. possibly not be able to fly on that same airline again