In 2010, there was a slight decrease in the number of out-of school adolescents from 75 million in 2009 (UNESCO, 2009) to 71 million in 2010, of which 55% are girls (UNESCO, 2010). In Kenya, only 17% of girls have secondary education (CBS, 2004). This paper analyzes the role of families in girls' secondary education in two schools within Nairobi province, Kenya. Data were obtained from interviews with adolescent girls attending Kamu and Lafama schools in Nairobi province, the dropouts, and a sample of teachers. Results show girls' lives and opportunities were socially constructed and this permeated into the families, influencing the way parents treated their daughters. This further provided a fertile ground for sexual harassment that plagued girls within their own families. The Kenyan Government needs to influence women and girls perceptions, through "increasing campaigns from the grassroots" on the importance of being committed to girls' education. (Contains 1 figure and 1 table.)