Preschoolers sound much brighter and more knowledgeable than they really are, which is why so many parents and grandparents are sosure their progeny are gifted and super-bright. Because children's questions sound so mature and sophisticated, we are tempted to answer them at a level of abstraction far beyond the child's level of comprehension. That is a temptation we should resist.
Even extreme grief may ultimately vent itself in violence--but more generally takes the form of apathy