My unvaxxed son just returned from a ski trip with a few friends.
Good news: he was able to buy a lift ticket.
Bad news: he was banned from entering ANY of the indoor facilities belonging to the slope (restaurants, shops, little mid-mountain cafe where we warm up and get a coffee).
His fully vaxxed friend was also denied entry to same facilities as he had left his CV shot record at home.
I suspect this is how they will eventually persuade people to take the inevitable "Mark."
"Oh, you took all your shots? Good boy. You forgot your vaxx card? Too bad, so sad. Wouldn't it be nice if we had a system to permanently record your shots on your body? You know, you've been a good boy, but since you can't prove it, we have to treat you like your dirty friend. With modern technology as good as it is, I bet there is a way to make sure you always get credit for being a good boy. I heard Bill Gates has been sponsoring research into this. He's awesome, you know. Won't it be great when they can bring it to market?"
And the fearful people will beg to be enslaved.