Why are children so, well, so helpless? Why did I spend a recent Sunday morning putting blueberry pancake bits on my 1-year-old grandson’s fork and then picking them up again off the floor? And why are toddlers most helpless when they’re trying to be helpful? Augie’s vigorous efforts to sweep up the pancake detritus with a much-too-large broom (“I clean!”) were adorable but not exactly effective.
This isn’t just a caregiver’s cri de coeur–it’s also an important scientific question. Human babies and young children are an evolutionary paradox. Why must big animals invest so much time and energy just keeping the little ones alive? This is especially true of our human young, helpless and needy for far longer than the young of other primates.
One idea is that our distinctive long childhood helps to develop our equally distinctive intelligence. We have both a much longer childhood and a much larger brain than other primates. Restless humans have to learn about more different physical environments than stay-at-home chimps, and with our propensity for culture, we constantly create new social environments. Childhood gives us a protected time to master new physical and social tools, from a whisk broom to a winning comment, before we have to use them to survive.