How do we know that the advice is any good? Or does it not matter? In this case, you're going after whether the people who gave advice did better themselves. And i think what this advice giving experiment me is that we don't always do what we know is best. We should always go for the bigger fish. But i think sometimes we are just reminded of things that we knew in some way, shape or form. There is a lot of unused wisdom lyin around inside of ourselves.
Also: why don’t you need a license to become a parent?