I suppose parent poster means that people who haven’t finished high school may take it too much at face value, and not take education seriously.
Correct. My concern is if young folks, such as when I was in middle or high school, read this they might become too underachieving.
Okay, the age at which somebody is exposed to certain media seems like a potentially valid concern. I thought you were making a statement about adults who hadn't obtained those credentials, which would be a whole other bag of worms; it's possible to attend college without a highschool diploma or equivalent, and it's also possible to achieve difficult things without either of those pieces of paper in hand.