Child labour accounts for 22% of the workforce in Asia, 32% in Africa, 17% in Latin America, 1% in the US, Canada, Europe and other wealthy nations.  The proportion of child labourers varies greatly among countries and even regions inside those countries. Africa has the highest percentage of children aged 5–17 employed as child labour, and a total of over 65 million. Asia, with its larger population, has the largest number of children employed as child labour at about 114 million. Latin America and Caribbean region have lower overall population density, but at 14 million child labourers has high incidence rates too. 
This process may not be wholly gradual, but new evidence shows that the passage into new stages is more gradual than once thought. Once a new level of organization, knowledge and insight proves to be effective, it will quickly be generalized to other areas if they exist . As a result, transitions between stages can seem to be rapid and radical, but oftentimes the child has grasped one aspect of the new stage of cognitive functioning but not addressed others. The bulk of the time spent in a new stage consists of refining this new cognitive level however it is not always happening quickly. For example, a child may learn that two different colors of Play-Doh have been fused together to make one ball, based on the color. However, if sugar is mixed into water or iced tea, then the sugar "disappeared" and therefore does not exist. These levels of one concept of cognitive development are not realized all at once, giving us a gradual realization of the world around us. 
In the midst of so many conflicting messages about what parents should do to prepare their child for what is perceived to be an increasingly complicated, competitive world, pediatricians have a natural role to serve as caring, objective child professionals with whom parents can discuss their approach to child rearing and reflect on their own desires for their children. Because pediatricians have a unique and important role in promoting the physical, emotional, and social well-being of children and adolescents, it is important that they promote strategies that will support children to be resilient and to reduce excessive stressors in their lives.