We cannot possibly expect all parents to take proper care of their kids. This has never been the case and never will. That's why we have schools and other institutions that oversee our growth within society.

You could make same exact argument regarding kids health, alcohol abuse, nicotine abuse, all types of addictions, age of consent, and so on.

You can't just have all the safeguards dropped because you think you're doing a good job. Or, even worse, you have no kids and it's your virtues merely projecting.