I managed to get porn long before there was an internet and I was way underaged. So just how is a new law going to stop it?
What funny is children are the result of sex, but if you show said act in a film with everything in view, it's porn and children can't be shown it, and yet we show girl and boy (at about 13) childbirth films where you see everything.
I made it a point to make sure my step child watched something on Science channel, or one of the networks like that, a show that showed child birth in all it's gory details. It was a lesson well remembered by him.
And all it would take is one person turning you over to CPS saying you made said child watch a naked person on TV to wind up in court.
Sad but true