By "this mess" are you referring to Ch. trafficking? I'd say the responsible people for that are the ones running the criminal rings... but the responsibility for prevention (beyond just plain law enforcement) should still ultimately be with the parent, imho. Since they are the ones with the most power and control over the environment the child is exposed to (I mean, it does not matter how many authentication layers you add, ultimately a child can pass it if they use the parent's ID...).
If by "this mess" you mean the risk of leaking private information that everyone is concerned about, I don't think that's really caused by the "leave it to parents" mentality.. if anything, that's caused by the "parents shouldn't have the responsibility" mentality, which is pretty much the opposite...
That's true. The way China treats people as if they should be protected from bad news that could be perceived as negative or destabilizing (at least without some "massaging" of its statistics), is the reason why they have always good news and high approval rate.
Personally, I feel that being in either of the extremes when it comes to reports of satisfaction is a bad sign. I feel a healthy relationship always requires acknowledging the failures of its own government and being critic on the things that are not being done right... and there's always something not being done right...