Why is there no "I do not know" answer in people's Vocab?"

We hate to let anyone know that we don't know or worse haven't tried to find out or simply Why Not
say "that wasn't in my line of interest". Can we possibly know everything?

We do know something, we just havnt explored our minds farther.

Why is it so hard to accept the "I don’t know" answer either? Do we feel that someone is trying to get rid of us in responce when we ask a question? Some are probably too kind to give you the raw answer, in fear that you may misunderstand their intentions.

Why dont we hear when one passes an advice? Why do we turn around to bite the same person we did ask for advice? Remember once you open your mind or mouth, you made an invitation. Why dont we just stop and realise that an advice is just an opinion? An advice isnt a statement of fact, nor a persuasion to act. Its just an insight to how the other views your question.