I presume all of the people so vehemently against this have gone out of their way to not have any social media presence, don't drive, don't have a passport, pay for everything in cash with money they've earned cash-in-hand so as to avoid having a bank account and definitely don't have a Tesco Clubcard? Oh and no NI number. Right? Absolutely definitely no Government Gateway login either...
The whole lot is already digital anyway, its just a pain in the backside having to go to different places for different things when it really ought to be linked already. There is no good reason why we should have an entire government organisation dedicated to maintaining records of your identity for the purposes of licencing you to drive while we also have an entire government organisation dedicated to maintaining records of your identity for the purposes of allowing you to travel internationally while we also have an entire government system dedicated to maintaining records of your identity for the purposes of managing your healthcare while we also have an entire government organisation dedicated to maintaining records of your identity for the purposes of maintaining your criminal record (should you have one) while we also have an entire government organisation dedicated to maintaining records of your identity for the purposes of keeping records of your birth and death while we also have an entire government organisation dedicated to maintaining records of your identity for the purposes of taxation. The list of parallel systems is huge - if you are a pilot, if you have a drone, if you own firearms, if you have a television, if you have a powerful radio, if you're a company director. I am sure there are many more. All digital already, all duplicated massively.
It should never have been allowed to be such a mess in the first place let alone fighting to maintain it as the status quo. If there are to be records at all then we should have a record created at birth and in which ALL pertinent governance-related data is maintained until an appropriate amount of time after your death. To not do this is costing the UK taxpayer many, many billions every year.