Re: "no requirement of 'registration' for deactivated firearms"
"And leading to the slightly bizarre requirement to get driving licenses to prove you are legally blind (at least in Ca)"
Nonsense. For persons who do not qualify for a driver’s license for any reason, including lack of vision, the Department of Motor Vehicles issues the California Identification Card. This is a picture identification card that looks very much like a driver’s license but is used for identification purposes only.