> These are obvious differences in even my one year old noticed. My friend who worked in elementary schools (I think they were a substitute teacher, but maybe

> These are obvious differences in even my one year old noticed. My friend who worked in elementary schools (I think they were a substitute teacher, but maybe they were an assistant for after-school) would be asked "are you a boy or a girl?" in practically every new group they watched. What differences should the K-3 kids have picked up on to sex them? Why would it have been important to sex them?