If that stuff is shoved down ur throat from the day you are born it becomes a part of you. Thats because we are programmed to take whatever we hear from our parent when we are toddler as fact. How else is the baby supposed to know not to crawl into the pit of lava? The parents tell him once and he will never do it, its imprinted. Its a part of us all thanks to darwin. How else could our species survive with learning imprtant survival tings as babies?