Are you a parent? If you are, what degree of control do you think you have over what your child is exposed to during the times when they’re not with you?
Not saying I like the draconian levels that China is going to on this, but a lot of how your kid turns out is based on what they’re exposed to by their peers, and so some things are societal/population level problems. Parents can broadly try to affect this by controlling the school their kids go to, but that’s a very blunt instrument at best, generally much more expensive than less great schools, and a huge amount of work to redo. If they’re already struggling due to eg high housing costs relative to their wages (another one of our societal issues), then the parents are going to have a really uphill challenge trying to curate their children’s’ experience.
It takes a village, and if your village is not working well, you’re going to have a hard time as a parent. This whole idea of nuclear families as independent units was never true and needs to die.