Don't underestimate the will of young children to do what is 'forbidden'. Especially when in puberty, they will find ways.

They are humans as well and can therefore think ;)

I should not let your 8 years watch tv alone, nor should you let 8 years old alone in the internet.

I really think the whole human race's ability to exchange information freely is bigger than "porn addiction" bs. We do this over and over and it always ends the same stupid way--millions upon millions of deaths that were avoidable.