Childless women don't age well. If they are saved from the effects of a never-pregnant climax on their arteries/metabolism, they will face a dementia cared by nieces. Not that mothers don't have these but physically and psychologically they are much less burdensome. The hormone flooding of pregnancy is a health blessing.
Needs citation for your argument. All I read today on this subject claims the contrary:
"Associations between number of children, age at becoming a parent, and dementia risk were similar for both sexes. Lifestyle and socioeconomic factors are more likely to explain the observed associations than normal pregnancy-related physiological changes."
Caring for elderly depends on the role of family in society. In my country family still plays a huge role so having no direct descendants has it's impact.
