Another traditional usefulness of older people is that they are capable of babysitting their grandchildren, thereby freeing up their own adult children, the parents of those grandchildren, to go hunting and gathering food for the grandchildren.
Друга полза от възрастните е това, че те могат да се грижат за внуците си и по този начин да позовлят на родителите да ходят на лов за храна.