Re: Unique keys
"Same here. I can't even sign up to the same GP as my Dad because the NHS system cannot handle two people with the same name at the same surgery. The NHS is supposed to recognise people by their NHS ID, or at least name and date of birth, but that clearly doesn't work, so all this talk of a unique ID might be good in theory but I can tell you it ain't gonna work in practice."
That sounds more like a either a problem at your surgery or the software they use. My NHS surgery clearly has no issues with duplicate names so long as other details are different as I discovered when joining the queue for my last flu jab and on giving my name was told, "oh, there's two of you, DoB please?" and all was well with the world. I have no idea how long we've both been registered patients there but I, at least, registered about 40 years ago. I think the 'flu jab was prioritising older patients first, so he'd be of a comparable age to me too. I doubt my surgery is unique in the software it uses but I'd not be surprised to find there's multiple vendors and/or versions out there.