Modern western culture, as exemplified by the USA, has become a disease which has literally developed a fail-safe guidebook for turning inquisitive & intelligent young children into emotionally and intellectually crippled adults
How is it done?Take one infant ... inject it with multiple vaccines containing a plethora of toxins; heavy metals like mercury and aluminium; pathogenic organisms; and additives such as MSG. Then ensure ongoing exposure to brain-damaging toxins such as flouride [in drinking & bath water, toothpaste], masses of MSG and other neuro-toxic additives in food.
If the above programme is insufficient to cause noticeable brain damage, the public school sector will do the rest, forcing even the most capable child into an intellectual strait-jacket which can cripple their cognitive development and cause them to become emotionally stunted.