It's like you haven't read a single thing that anyone's said. Do you really not know the answer to if you need them for supermarkets? If you don't know that you can't claim to have an informed opinion.Not really. It will be the fault of the Government for introducing such a pointless thing.
Will the passports indicate who is infectious or not?
Will they be required to enter a supermarket? If not, why not?
How have they managed so far?