Forget teaching how to do taxes, if we teach the paradox of knowledge (“If you think you understand it, you are wrong”), we might be able to make better collective decisions.
One reason science is skeptical of “old home remedies” is it is designed to provide causal explanations. It isn’t enough to conclude “this happens,” they seek to know “why it happens.”
Newton’s First Rule of Reasoning: We are to admit no more causes of natural things than such as are both true and sufficient to explain their appearances.