I would guess that most of the people who have answered this question with the same copied answer don't have children. It is true that at some stage of being a responsible parent, that this realisation sudddenly dawns on you. There you are with these innocent, trusting little people and you suddenly realise that you are responsible for their future behaviour, morals, beliefs and outlook on life.
As a responsible parent, we can only try to give our children firm foundations upon which they will build their own edifice to their own design.
I have always felt it odd that all the important things in life, I've had to take an exam, pass a test or qualify for. Apart from the most important thing in life, bringing a child into the world, which any eejit can do, with no qualifications whatsoever.