The fact that you think that anything you suggested would prevent or hinder a child from seeing things you don't want them to see online, or that it would affect a child's ability to be affected by what is online is indicative of the bigger problem. To put it into terms you might understand, you are storing your passwords in plaintext and the traffic isn't encrypted.

Basically, you're ignorant.

This isn't to say that the laws that the majority put into place are good. I'm not speaking on that. You are, in this situation, that layman, who cannot solve the problem you are claiming you want to solve.