Again, there is no "age verification", there is only "identity verification", and "identity verification at the OS level" means specifically that there is no such thing as free software in any inclusive, democratic sense and no such thing as "computer ownership" in any way that involves meaningful choice.
A friend, @chloetankahhui has been speaking up against the proposal to enforce age verification at the OS level, and the QRTs to this shows the extent of naivety that a lot of people have.
No one who does hardware security believes that any system is bulletproof, but do you really think that circumventing these things will always be a simple firmware mod or hardware hack?
Let's dive in. /1