There is a way to prevent this (or at least slow it down), but that way requires device integrity protection.
With integrity protection, tokens can only be minted with a government app, driven by both biometrics and physical human hands touching the physical screen. There's no way to do it in the background. Without it, you can indeed have a single activist mint 10 billion tokens and give them out for free, defeating the entire scheme.
There's a CAP-style triangle here. You can have age assurance and anonymity but lose the ability to run your own software, have age assurance and device control but lose anonymity (via traditional ID checks, which don't require IP in theory), or have anonymity and device control but lose age assurance.
With integrity protection, tokens can only be minted with a government app, driven by both biometrics and physical human hands touching the physical screen. There's no way to do it in the background. Without it, you can indeed have a single activist mint 10 billion tokens and give them out for free, defeating the entire scheme.
There's a CAP-style triangle here. You can have age assurance and anonymity but lose the ability to run your own software, have age assurance and device control but lose anonymity (via traditional ID checks, which don't require IP in theory), or have anonymity and device control but lose age assurance.