i confess that i used one of the elderly women to gain "parenting skills" for my male villagers. and i don't stop "using" her until i make them master parents (it is due to my desire to make more esteemed elders).
i haven't finished vv2:lost children yet but i am planning on killing villagers if i had to. since in this game, women stopped breeding at 50 and when i maximized my population and ran out of children and nobody is old enough to die yet, i need to force somebody to die to make room for the young generations, to ensure continuity of the tribe.