Lorenze - I'm quite happy with any company knowing my medical history, criminal record, etc etc etc(I don't have any records of any note, my doctor has difficulty finding the envelope with 3 pages in it!, They had to go back 30 years to find a Credit Record, and my only conviction was driving a car to a garage to have new tyre fitted, the day the law came into force!

. ) - What good it will do them is a matter of conjecture - If they don't supply the service at a reasonable cost they will lose the buisness. Lost customers means lost income which means no buisness!
Yes I can find historical and family records that would place me in the "vulnerable" groups but I'm not about to pay over the odds for a service because of that and most companies know that.
And if the ID card means I get the right treatment in an emergency (Do not resucitate after the age of 70 and use anything usable to help someone else) then it can't be all bad!