The main point of contention: how much control should the individual have against the official certified record. The dependency issue is that particular services are rendered based on these attributes. If he gets his way, why shouldn't I turn myself into 69.5 years old so I can pull that (very little) sweet 401k money, or pull social security?
His stated motivation for the idea is amusing/ridiculous/absurd (choose your descriptor). However, his idea brings up some points about the stability of record keeping and how entitlements are given.