Dug deeper into ZKP (Zero Knowledge Proof).
My initial understanding of it a while back (when I made a post about it) of it is correct, and I'm pretty sure most people who talk about it don't properly understand it correctly in sense of verifying information about someone.
What I didn't 'dig' back then was if there was an actual working solution in doing so.
Can we verify that someone is 'above 18' without providing any information about who we're targeting?
After digging into it now, it seems like the tech has been there for a while (CL) and now an improved version of it (BSS+), but there's barely adoption for it from the looks of it. (obviously I can verify the validity of the tech since I'm no coder or cryptographer, so for those who do, dig into that x3).
Basically:
ZKP (BBS+) is: Private + Secure / Verifiable Info, but can't be traced to a person (meaning 'hey can i use your zkp? i want to access this site' to an underage person.)
KYC is: Secure / Verifiable Info + traced to a person, but not private at all (consequence: doxxing, blackmail)
Obviously ZKP is better if we're weighing things, however, you have your answer why ZKP isn't being deployed by countries even though it matches their 'protect the children': It was never about protecting the children; it was about having power/control over you.
I've reached an understanding on this, nearly, where I can explain the full process in a simple way (it took me a bit to understand it, since it's different then the knowledge of normal private key signing and proof of signature / who signed what). Will continue going down the rabbit hole in this (right now, learning more about BBS+).