it's more than just national id
and that's what they claim you're paying for.

is fucking expensive though, was pissed off when i got my first adult one as i'd been told that i'd get a free 5-year extension to my child one, but when i came to renew was told that as it was issued after a certain date they'd changed their rules and not told anyone
(cs192 how appropriate, your mother fights like a cow, Sun 25 May 2008, 23:58, archived)