The UK must be one of the few countries left where you have to show (often paper) bank statements and utility bills to prove who you are (or simply that you live where you say you live), and in the process revealing all kinds of personal information that is none of the recipient's business - including Government.

This could all be solved with a national ID card (and would save the public purse £millions, as shown by the Verify programme). The complexity isn't in the actual technology (which exists, and has done for a long time), but the sheer number of possible identity documents that need to be accounted for and the mechanisms for collecting that documentation for verification.

But Brits are too stubborn to accept it. These are the same swathes of people that share stuff on Facebook, install Ring doorbells, and throw bank statements in the bin un-shredded.