That’s why you need to read and comprehend the comments in their entirety. Perhaps if you took the time to ask for clarification, you wouldn’t be wrong so often. People don’t write their comments just for you.
Since you are now saying that “well mannered children” means “college age”, what’s the cut off age where it is harmful? Many go to college at age 17. Is porn harmless for them? What’s the magic age at which porn is not harmful? I wonder why you think ill mannered children in college might be harmed by porn, or would you disagree with that statement?
Or do you agree with Drew68, that even a 4 year old can see porn without any harm?