Interesting article. I think this is worth repeating: "I don’t think all parents are thinking this way, but I think this group of parents is thinking this way"
The other expert in the article mentioned that teenagers are easily embarrassed by their parents' attempts to talk about sexuality.
The researcher said "teens are complicit in their parents’ head-in-the-sand mentality.""And basically, the parents would say, we have tried to talk with him or her, but the teen says, ’eww ... Mom, I don’t need to hear this information. I’m not doing anything,’" she said. "So I think that the teenagers are actively presenting themselves to their parents as asexual."
I don't think they intend to imply that Teens, as an organized entity, are all working from the same memo in order to thwart their Parents and lie to them.
But a few years ago I did read a book about how to talk to your kids about sex. The author made a similar point. It's not enough for a parent to be willing to discuss sex if their child brings it up. Because chances are, because kids are embarrassed to talk about it, they won't necessarily bring it up with their parents. The author said over and over, parents need to start the conversations, and for the sake of their childrens' health and safety, need to persevere in spite of everyone's discomfort.