What is the objective of this vaccine passport?
To stop the virus spread? But vaccinated people still can transmit virus , it is a fact.
To make people get shots? But those who opposed vaccination won’t do it regardless.
I am going on business trip next week, and , even though I am fully vaccinated, I need to do a test to make sure that I don’t have a virus, before check if for my flight. In my opinion, if the objective was to stop the virus spread, the same should be done with these passports- just add negative test result withing24 hours and you can go everywhere even without vaccine. This way it was done in France, for example.