That doesn't make sense because the government knows about every vehicle and its owner and his social security number and there is no point to hide it. I think you misunderstood something or I misunderstood your comment.
The goal of "bringing identity to your phone" is making identification easier to require it in more cases so that the government knows better what its citizens do. One thing if you are required to fill a 20 fields form to buy a bicycle and another thing if you need just to tap your phone at the cash register.