You raise some interesting points:The QR code changes very 28 days or so? I'm not that technical but think the easiest way (should it be made mandatory) would be for you to show proof to the club before they release your digital ticket? I understand it will be a digital season card rather than individual tickets every game so would only have to be done once.
Firstly, just checked my QR code from the NHS app and my code expires 20th Aug Which is unfortunate as our first home game is the 21st. I'm double jabbed - March & June, so wasn't expecting to have an expiry date anywhere near Aug?? ..maybe, as you say, the code updates??
On the seasoncard ..(can't really call it that now can we?), It's logical to send us a file which contains all 19 entry tickets rather than 19 individual mails/e-tickets but until the club publish how they'll do this we're all still in the dark.
For such a monumental change affecting so many, the silence from City is deafening!
This is going right over the heads of many! ..unsupported NFC phones phones, Print-at-home??, plastic cards?? ..from what I read here that's the last we've seen of them?
I can only imagine carnage outside on the day of the Norwich game & ultimately many not so' tech-savvy' fans walking away from the club they've supported for years purely at the whim of some bright young thing who thought this might be a good idea!