Controversies in Social Implications of School Uniforms on Gender

General
In some cultures, the topic of school uniforms has sparked a multitude of controversies and debates over the years. Debates concerning the constitutionality and economic feasibility of uniforms also contribute to the controversy.
In the United States, the implementation of school uniforms began following ten years of research indicating the effectiveness of private schools. Some state-school reformers cited this research to support policies linked to private and Catholic school success. However, within the Catholic school literature, school uniforms have never been acknowledged as a primary factor in producing a Catholic school effect. Some public-school administrators began implementing uniform policies to improve the overall school environment and academic achievement of the students. This is based on the assumption that uniforms are the direct cause of behavioral and academic outcome changes.

Another area of controversy regarding school uniform and dress code policies revolve around the issue of gender. Nowadays, more teenagers are more frequently "dressing to articulate, or confound gender identity and sexual orientation", which brings about "responses from school officials that ranged from indifferences to applause to bans". In 2009, there were multiple conflicts across the United States arising from disparities between the students' perception of their own gender, and the school administrators' perception of the students' gender identity. Instances include the following:

Spring 2009: Marion County, FL - Students must dress "in keeping with their gender"
Boy came to school wearing high-heeled boots, a stuffed bra, and a V-neck T-shirt, he was sent home to change because he was "cross-dressing"
May 2009: gay male student at LA high school was crowned prom queen
Aug 2009: Mississippi senior female barred from yearbook because she had posed in a tuxedo
Sept 2009: Tucson, AZ a freshman trans boy was nominated for homecoming prince
Oct 2009: Cobb County, GA sent home a boy who favored wigs, makeup, and skinny jeans
Nov 2009: Cross-dressing Houston senior was sent home because his wig violated the school's dress code rule that a boy's hair may not be "longer than the bottom of a regular shirt collar"

Although not all schools in the United States are required to wear school uniforms, the United States is slowly adapting the use of school uniforms. "Almost one in five US public schools required students to wear uniforms during the 2011-2012 school year, up from one in eight in 2003-2004." The ideology of school uniform is that it will create a safer environment for students and help with equality. In some areas uniforms have become essential due to the poverty level that the schools reside in. "Mandatory uniform policies in public schools are found more commonly in high-poverty areas."

Stephanie Northen of The Guardian wrote that school uniforms are less controversial in the United Kingdom compared to the United States and are usually not opposed on free speech grounds.

Positives
Advocates of uniforms have proposed multiple reasons supporting their implementation and claiming their success in schools. A variety of these claims have no research supporting them. Some of these pros include the following: Advocates believe that uniforms affect student safety by:
Lowering student victimization
Decrease gang activity and fights
Differentiating strangers from students in school buildings

For example, in the first year of the mandatory uniform policy in Long Beach, California, officials reported that fighting in schools decreased by more than 50%, assault and battery by 34%, sex offenses by 74%, and robbery by 66%. Advocates also believe that uniforms increase student learning and positive attitudes toward school through:
Enhanced learning environments
Heightened school pride
Increased student achievement
High levels of preparedness
Conformity to organizational goals
Increased chance of staying in school
Increased commitment to learning
Increased use of school setting to the student's advantage

Wearing uniforms leads to decreased behavior problems by increasing attendance rates, lowering suspension rates, and decreasing substance use among the student body. Proponents also attribute positive psychological outcomes like increased self-esteem, increased spirit, and reinforced feelings of oneness among students to wearing uniforms. Additional proponent arguments include that school uniforms:

Encourage discipline
Help students resist peer pressure to buy trendy clothes
Diminish economic and social barriers between students

Currently pros of school uniforms center around how uniforms impact schools' environments. Proponents have found a significant positive impact on school climate, safety, and students' self-perception from the implementation of uniforms.

Negatives
The opposing side of uniforms have claimed their ineffectiveness using a variety of justifications, a variety of which have research supporting them. Some of the cons to school uniforms include the following legal, financial, and questionable effectiveness concerns: The primary concern with school uniforms or strict dress codes is that it limits the ability of students to express themselves. Clothing is viewed as a mean of expression - making all students wear the same clothes or limit them to what they can wear can disrupt their sense of identity. One of the main controversies can lie within Dress Code Policies vs. Freedom of Speech. This establishes that students cannot wear the latest trends, mid-drift, or clothes that the school finds that interrupts the learning environment. However, students can wear clothing artifacts that express their religion. "Both the Constitution and most state laws protect students' rights to wear religious attire in school, such as the wearing of a turban, yarmulke, or head scarf."

Another negative aspect of school uniforms is that it can be sexist. Boys and girls are not disciplined the same when it comes to dress codes. "Transgender students have been sent home for wearing clothing different from what's expected of their legal sex, while others have been excluded from yearbooks." Some schools are not advocates of females and females dressing of the opposite sex. Research on how school uniforms and school dress codes influence the student can be inconclusive, but many people oppose to school uniforms and strict dress code policies. "In the U.S., over half of public schools have a dress code, which frequently outline gender-specific policies."

Legal concerns
Focus on the supposition that requiring a uniform violates children's individual rights (Thomas, 1994; Virginia State Dep't of Edu, 1992)
Mandatory uniform policies are being considered largely for urban school districts, and, hence are being forced on a predominantly minority and poor student population (Thomas, 1994)

Financial concerns
Groups such as the American Civil Liberties Union have voiced concerns about the cost of uniforms, specifically that some disadvantaged parents are unable to afford them (Gursky, 1996)

Questionable effectiveness of those policies
Strongest opponents of uniform policies charge that no empirical evidence exists to support the numerous and varied claims of uniform proponents (LaPorte, Holoman, & Alleyne, 1992)
School uniforms suppress students' individuality by mandating standardization of appearance and removing student expression (Joseph, 1986)
While uniform policies have been linked to school climate, safety, and student self-perception, there is no evidence to indicate that a uniform policy increases academic achievement (Wade & Stafford, 2003)

According to Marian Wilde, additional opponent arguments include that school uniforms:
Are simply a Band-Aid on the issue of school violence
Make students a target for bullies from other schools
Are an unfair additional expense for parents who pay taxes for a free public education
Are difficult to enforce in state/public (government) schools