The only reason that some people aren’t ashamed of their parents and/or siblings is because they know that we know that they did not choose them.
Do you know who your grand grand grand grand grand father is? Probably you don’t! If you want to know your very distant past, just look at yourself because you are the accumulated past, you are the ancient river coming from the valleys of the far past!
The strength of human instinct seems to be quite overrated as it is so feeble it requires a lifetime of guidance, education, training and practical experience to develop. More critically, without conscious and diligent effort across one generation to pass its knowledge on to the next generation, all that was gained will be lost, forewarned by an increasing rarity of the reminiscence, “Every secret of life I know, I learned at my grandfather’s knee.