Call100 & Chippie Chappy...
I'm afraid you're making the same fundamental error that many make on this subject.
It doesn't matter what airport they introduce it at first or what biometric or otherwise systems that airport has installed ..
The new National ID Card will not need to be carried by you at work as it will not be requested or required for airside access.
You will continue to use your present airside ID ... the two identification methods are not related or connected
Other than by the holder ... the govt. simply intend to make it a condition of being issued with an airside pass that you hold a National ID Card.
They could just have easily and rationally decided that it would be holding library card that would require a National ID Card
