A definition of biological sex as reproductive capacity is, inherently, a communal one. It is about the role the individual plays within its species – whether that role is conceived of as shaped by evolution, ordained by God or something else. John Money’s gender roles, too, concerned how individuals fitted into society – which stereotypes their upbringing had fitted them to adhere to. Now the focus had narrowed. What mattered was whether an individual could provide the sexual, not reproductive, services that a man expected of his wife – an individual rather than societal contract – and how
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