Kids can be individuals outside of school! Uniforms especially in the upper grades help students concentrate on their studies and not what they have on and how they look and fit in with certain groups. As far as financial burden uniform pants start at around $14.99 and shirts @ about $10.99. Most schools have financial help for those that really need it to buy uniforms. They can be as creative with clothes after school and on the weekends! 😉
School uniforms are easy and not anymore expensive than street clothes. In fact, it's often less expensive due to the consistency of cost allowing one to budget more precisely. Street clothes vary widely in price and need to be purchased in greater quantity. With uniforms, I bought 7 outfits, mix and match if some color variation was allowed. Khaki or navy blue slacks and usually up to three colors of polo shirt: white or navy blue plus the school color. Footwear is normally limited to simple, unadorned sneakers or loafers. Jackets/sweaters are simplified as well, though the schools my kid were in allowed any coat. Six kids, $150 each vs street clothes, $250 - $500, depending on age.
I am a retired teacher, but I used to teach eighth graders. When students in our middle school started wearing uniforms disciplinary issues were reduced dramatically. There were fewer fights, no more comments about the clothes another student was wearing, and better behavior on field trips.
"When all students are wearing the same outfit, they are less concerned about how they look and how they fit in with their peers; thus, they can concentrate on their schoolwork."
Yes, then there will be less fights over shoes or what others are wearing. Uniforms are so much better than short skirts and short shorts with holes in them. I believe the better you dress the better you feel.