Charlton explained to Discovery News that humans have an inherent attraction to physical youth, since it can be a sign of fertility, health and vitality. In the mid-20th century, however, another force kicked in, due to increasing need for individuals to change jobs, learn new skills, move to new places and make new friends.
A “child-like flexibility of attitudes, behaviors and knowledge” is probably adaptive to the increased instability of the modern world, Charlton believes. Formal education now extends well past physical maturity, leaving students with minds that are, he said, “unfinished.”
“The psychological neoteny effect of formal education is an accidental by-product — the main role of education is to increase general, abstract intelligence and prepare for economic activity,” he explained.
“But formal education requires a child-like stance of receptivity to new learning, and cognitive flexibility."
"When formal education continues into the early twenties," he continued, "it probably, to an extent, counteracts the attainment of psychological maturity, which would otherwise occur at about this age.”
