[hellojesus]

It kind of does. Depending on how the mechanism works, if I check the user's age every time my executable is launched, and my user launches daily, I can determine with certainty what the user's birthday is. That information may be enough to deanonyimize in rural regions. It certainly gives away pii.

[gzread]

One allowed way to implement it is that your mom has to log in as root and unrestrict your account, and the user's age is only set to one of 4 different brackets so you'd better be watching the user every day for several years. Also if you are root you can just lie.