Sexual development is a process of gradual discovery and cannot be effectively taught in a classroom  Having a one size fits all sex education system cannot effectively deal differences within classes. Sexual experience is a gradual process and cannot be meaningfully taught in the structured environment of the classroom. People must discover much about their own sexuality, through experimentation and self-exploration. By trying to impose a strict curriculum that explains sexual processes and practices along set guidelines, much of the opportunity for self-discovery is lost. Furthermore, when people are forced to conform to the set sex education program, they cannot move at their own pace. This is particularly harmful to people who are physically or emotionally less mature than their fellow students and who would be better served if they were allowed to pursue sexual knowledge at their own pace. When other students are involved in the classroom, there is necessarily a degree of peer pressure, which places a further strain on the later bloomers of the class to conform and experiment sexually before they are ready. [1] Another example is the case of gay and gender dimorphic students who will be left isolated within the class, even singled out as different, in a way that may not be conducive toward the promotion of understanding and acceptance. Teachers cannot cater their lessons to every single student, and thus students with less conventional sexual preferences and identities are left without meaningful engagement in the classroom.  [1] Pogany, Sex Smart, 1998