A subset of heteronormativity is the concept of heteronormative temporality. This ideology states that the ultimate life goal for society is heterosexual marriage. Societal factors influence adults to search for a partner of the opposite sex to engage in heterosexual marriage with the goal of having children through the traditional nuclear family structure. Heteronormative temporality promotes abstinence only until marriage. Many American parents adhere to this heteronormative narrative, and teach their children accordingly. According to Amy T. Schalet, it seems that the bulk of parent-child sex education revolves around abstinence only practices in the United States, but this differs in other parts of the world. Similarly, George Washington University Professor Abby Wilkerson discusses the ways in which the healthcare and medicinal industries reinforce the views of heterosexual marriage in order to promote heteronormative temporality. The concept of heteronormative temporality extends beyond heterosexual marriage to include a pervasive system where heterosexuality is seen as a standard, and anything outside of that realm is not tolerated. Wilkerson explains that it dictates aspects of everyday life such as nutritional health, socio-economic status, personal beliefs, and traditional gender roles.