The antidote is discovered after the coronavirus infection. It is mandatory for everyone to take this antidote. And the vaccine passport is a certificate of whether you are virus-free with two doses of the vaccine.
It does not prove that you are free of the virus! The vaccine doesn't make you immune. You are still going to contract it with or without the vaccine. What it does is helps you fight the virus once you're infected and your chances of dying are much lower. Just read about the situation in Israel. Almost whole population is vaccinated and people still get sick, just like in any other place in the world, so a piece of paper showing that you're vaccinated doesn't mean you're not a carrier.
Personally, I like this concept. Because if you want to be safe, you must get vaccinated.
Wrong again. You get vaccinated when you want to increase your chances against the virus. It doesn't make you safe!
And what is the proof that I have received the vaccine?
Here's the thing, you shouldn't need one. It should be your personal choice, just like when you're sick, you can take a painkiller or not. It's up to you if you choose the hard or the easy way, how well you cope with the pain, if you're allergic, and so on.
The lockdown is weakening, the school and college are opening, and if anyone goes out without a vaccine, he or she will infect themselves and everyone around them.
It's not how it works.
This vaccine passport is a safe haven to roam-free. Because if everyone gets vaccinated and everyone has a certificate, then there is no chance of spreading corona.
Here's some data from Austria:
99.2% vaccinated with 2 doses, 32,6k infections, around 20 deaths every day. Vaccinations are mandatory there, but when they were not, like in October, they were averaging at 10 deaths per day and only 2 in July.
https://graphics.reuters.com/world-coronavirus-tracker-and-maps/countries-and-territories/austria/https://www.worldometers.info/coronavirus/country/austria/