Another possibility is that, from a very early age, we are taught not to ask questions. When I was a child, the common wisdom was that children are to be seen, not heard. Questioning adults was a no-no. So I believe most children, in my generation at the least, were discouraged from asking questions, especially irritating ones like “where do babies come from?”
Aside from the culture of children being seen and not heard, for some time, as a matter if science, it was believed that children were born as either blank slates or empty vessels. This meant they knew absolutely nothing until nurturing adults either “wrote” something on their blank little minds or filled their empty vessel brains with knowledge.
Fortunately, geneticists have uncovered a great deal of evidence against this “scientific” silliness. As we now know, children come into this world riding strands of DNA that carry all sorts of vital emotional, intellectual, and personal identity information. Also, as suggested earlier, little children are full of wonder, full of questions. They need to be heard.
I believe the be-seen-and-not-heard practice spills over into all facets of adult life. The corporate, governmental and social structures that govern behavior in our society are top-down structures. In other words, there is a small group of people at the top who determine what happens to the far larger numbers at the bottom.
In the real world, what this means is that workers seldom challenge their bosses. They do as they are told. Patients seldom challenge doctors or other health care professionals. They do as they are told, and take whatever medicine may be prescribed for them. Political and governmental leaders often say some of the dumbest things and never get voted out of office. There is no conversation.