@Fido,
I'd like to add that only those who forget who they are, who forget what life is about, who forget why they existed, are "reminded" of what life was all about from their children and "everything important to life" isn't all that important at all.
Philosophy, or more precisely critical thinking and ethics, during childhood will help prevent them from becoming engulfed in dogmatism, propaganda, ignorance and naiveness so that they don't have to be reminded of the purpose of life, and real nature of humanity from their children.
