The thing is that sooner or later we will be forced into such a system. The problem is that it is hard (but not impossible) to do this the right way and it would be a very powerful thing to have for everybody. But getting it wrong will have horrible consequences. From this article it looks like the legislator lack required expertise or will to for the right solution that would basically empower people with control of their data and make tracking not feasible.

"lifelong identifier to their users’ identities" is obviously not needed for any company and that will defeat any privacy mechanism since companies will cooperate to piece together a full profile (as they do today).