3 links have been added on this idea.
  1. urr, nope! “in Darwinian theory, grandparenting makes no sense! Grandparents contribute no ‘fitness genes’ to the grandchildren.” https://crev.info/2019/03/no-grandparents-are-not-products-of-evolution/

  2. True, I like this idea – makes sense. Furthermore, it’s grandparents that can help ensure you survive to pass THEIR genes on.