I don't understand why apps need to know anything about a specific age. If we have to go down this road, which I really don't, why can't we just simply have verification whether or not an age fits within a range better yet a category. Yes, age can still be inferred, for example, under 21 or over 21.
This isn't aimed at you specifically, but I think many technologists seem to innately misunderstand the slippery slope hypothesis which helps form the bedrock of American politics. Too many seem to fall into the familiar problem-solving mode, ready to provide compromises or solutions while forgetting that once the infrastructure is in place, it can easily be modified later to undo the compromises which facilitated it…
They also actively undermine the US constitution. Will be interesting to see whether the remaining judges have any power to change this or whether they were also integrated into the new dictatorship model.