The story is not about being perfect people. It is about imperfect people.
Perfect people would have never tied up their husband and son, wife or daughter in the first place.
This story is a journey. Along the way, mistakes will be made. Mistakes are not the end of the journey.
Mistakes are nature's way of providing you consequences, so that you will learn to adapt. This story is an evolution.
An evolution of an imperfect family of four people, who don't yet know how perfectly imperfect they are.