Childhood is not merely basic training for utilitarian adulthood. It should have some claims upon our mercy, not for its future value to the economic interests of competitive societies but for its present value as a perishable piece of life itself.
Pulling a gun's trigger can be an appalling act. But if it is suicidal drawing fire to save someone, it has an utterly different meaning. Placing your hand on someone's arm can be an act of deep compassion or the first step of betrayal. The punch line? It's all about context, and the biology of context is vastly more complicated than the biology of the behavior itself.