Vaccine passports are precursors to Digital ID wallets.
It's not about the vaccine, it's not about the virus, it's about your data.
What people have to understand is that any other functionality can loaded onto the platform. It will be able to geolocate you everywhere you go. Your credit history will be included along with you medical and health history.
It will have the power to turn off your life, or turn on your life, to let you engage in society or be marginalized.
The choice is yours, so choose wisely.