Learning never stops, no matter the age. And what we can do, at least here on this forum, is help users understand the usability and the simplicity of things that appear to be complicated.
I have never come across anything that is too complicated for me to understand. But I have come across many things that are complex that I am too disinterested in to bother trying to learn it.
I think that most people, regardless of age or gender, fall into this category.
It makes sense when you think about it.
Many kids that are pressured into studying topics they have no interest in while in school perform more poorly than they do in topics they enjoy.
And teachers are constantly searching for ways to make math and other topics kids shun more interesting and fun.