PSI Testing has had the age 14 to sit for the test on their site for years now.
The age 14 is also on the Knowledge Testing Authorization Requirements Matrix PDF document from the FAA.
The only thing I could find in the CFR is this in section...
You must be 14 to sit for the test.
https://www.psionlinestore.com/faa-uas-drone-test-preparation/
If you take this at a PSI test center, you get your score as soon as you finish the test.
Take the test completion form, go to FAA IACRA, log in...
I don't seem to be getting through to you.
Your reply has nothing to do with my post.
But I still thing that your suggestion that Registration = Confiscation is nonsense.