Individuals are socialized to sexual attitudes by their family, education system, peers, media, and religion. For example, greater male propensity toward physical aggression and risk taking would be termed a "sex difference;" the generally longer head hair length of females would be termed a "gender difference. As a result, not only do women find it difficult to find their experiences acknowledged in the wider patriarchal culture, their viewpoints also tend to be silenced or marginalized to the point of being discredited or considered invalid. This means that we as a society assign sex and gender to people based on socially agreed-upon characteristics. Gender identity is the extent to which one identifies as being either masculine or feminine Diamond For critical sociology, these are matters defined in the context of power relationships in society. The first step toward stratification was segregation. However, as one report noted, if the gender gap in wages continues to close at the same glacial rate, women will not earn the same as men until the year McInturff For instance, some men are born with two or three X chromosomes, just as some women are born with a Y chromosome. However, infants were dressed in white until colored garments for babies were introduced in the middle of the 19th century. Yet, any time they ask students to arrange their seats or line up according to gender, teachers are asserting that boys and girls should be treated differently Thorne Making Connections: It was not until that same-sex couples were given the right to marry. In Canadian culture, masculine roles are usually associated with strength, aggression, and dominance, while feminine roles are usually associated with passivity, nurturing, and subordination. For example, not all women lactate, while some men do. Doing gender Used primarily in sociology and gender studies, " doing gender " is the socially constructed performance which takes place during routine human interactions, rather than as a set of essentialized qualities based on one's biological sex.