What a daft, daft thing to say.
Not sure about "daft", my examples seem to have been a few years old though. The age where people performing in sexual pictures/movies are considered to be children is [was] however different between jurisdictions.
UK: 16
DK: 15
Netherlands: 16
But these seem to have been raised to 18 recently in all three. The point about different jurisdictions still stands though, you have to remember that morals depend on culture. Someone from a completely different cultural background to yourself won't respond to what you consider "common sense" since the definition of what "common sense" is would be different.
This however doesn't involve anything related sex. The only thing the law made possible was for under-aged models to be "under-dressed" at shootings.
Something along those lines. It really has nothing about CP and whatever people are saying.