Age is determined by trips around the Sun and sex is determined by genetics. Gender, by definition, is not determined by sex. You are conflating sex and gender,

Age is determined by trips around the Sun and sex is determined by genetics. Gender, by definition, is not determined by sex. You are conflating sex and gender, but they are not the same thing. You can feel like a man, but be biologically a woman. You can feel like 40 at 70, but you're still 70. gen·der /ˈjendər/Submit noun 1. the state of being male or female (typically used with reference to social and cultural differences rather than biological ones).