Either unrestricted access to the internet hurts children, or it doesn’t. If it hurts children, then we have a societal responsibility to protect them from it. “Good parenting” wouldn’t be able to protect kids from lead in the paint, so why would we expect it to protect them from other widespread harmful contagions?
I didn’t say track, I said control access. I know my fellow Americans tend to bristle at the idea of doing anything for the common good, but I personally feel that the danger of unregulated media and internet access has been well demonstrated in the past hundred years, and that not regulating it in some capacity is just as negligent as not regulating firearm ownership or toxins in the food.