Because it's highly tyrannical? Odd how cavalier you are about this.
Nevermind that you have a right to privacy when it comes to health matters, this also forces you to carry "ID" pretty much everywhere.
Also, all tyrannies a born to "protect you".
> Makes me sad that we can't have a calm discussion about the merits of the policy.
I don't think that's what you are interested in. You wouldn't have started off your comment that way if you did.