Is individuality even possible?

Man, woman, or individual? Ellen Apply Keim, a feminist blogger, poses this question in her blog post Gender Differences. Keim believes that “generalizations are dangerous” and “we need to consider each person on a case-by-case basis” (Keim par 2, 4). The author admits that she tends to believe that “men and women each have physiologically-determined characteristics unique to their sex which may or may not determine their behavior” (Keim par 1). The blog post goes on to express that there are characteristics that each sex exhibits, but that an individual is not limited to the characteristics of his or her particular sex. She speaks for the entire feminist community when she states that she prefers to view people as individuals and not divide men and women into separate categories.
Much too often it is human instinct to classify people into groups. Defining people by the group they associate themselves with is wrong. Each person is not a member of a certain classification, he/she is an individual. For anyone who has ever seen a member of the opposite sex, it is obvious that the biological makeup of males and females is different. These difference may physically separate men from women, but “a person's gender has more to do with where s(he) sits on the spectrum of sexuality than with the genitalia s(he) was born with” (Keim par 2) Starting at conception, these differences have a huge impact on our lives. The first question someone asks a pregnant woman is, “is it a boy or a girl”. Girls should have long hair and boys short. Girls should cake on makeup, and boys should not care about their appearance. But why? Keim insists that “There are always exceptions to the rule” and “no one can deny that there are masculine females and feminine males” (par 2).
Not every human who is biologically configured to be a man acts like a lumberjack, just as not every woman wants to be a super-thin runway model. Keim is right in saying that humans should be treated as individuals, but this idealistic way of thinking is impossible. Society has created these restrictions depending on what sexual category one falls into and as I previously stated, the separation begins at conception.
I can honestly say that when I see someone who could potentially be either a male or a female, I almost always whisper to someone close by and ask if they know what sexual category the “he/she” falls into. Everyone has done it because it is human instinct to want to separate the men from the women. Individuality is ideal yet unrealistic.