Telling teenagers that you have to carefully explain the idea on a level accessible to your audience, and perhaps even then the audience would not understand if they lack some important knowledge or experience, hm.

I think this idea is worth telling at the beginning, but of course, in a best accessible way, and shortly. My preferred way is to describe an ancient setting (for less mindkilling, don't even mention evolution, just say "hunters in a jungle") where any knowledge is easily transferred. If someone says "there are gazelles near the river", everyone knows what "gazelle" means, and what "river" means. In our society, if you pick a scientific journal from a field you don't understand, you probably won't understand the articles. And yet it feels like we should understand everything quickly. This is an example of a bias, we call it "expecting short inferential distances". (Now move on to other biases.)