Rebuttal of your points.
1) They will have less need to buy personal clothes, as they are already wearing uniforms to school. Thus, they will have to spend less on personal clothes. Yes, they will buy the clothes that they want, but they do not need to buy as many as before.
2) You are assuming that all uniforms are itchy and uncomfortable. You are also assuming that all personal clothes are not itchy nor uncomfortable. The uniform that I use is completely fine, and in fact quite a few of my personal clothes are uncomfortable, because they sacrifice looks for comfort.
3) Because they are uniforms, uniforms can be bought for one or two children of the family and passed down to the younger ones. This will actually save money, if the uniforms are in reasonable condition. Personal clothes are harder to pass down, as they are a matter of personal taste.
4) How about looking for the blood, or looking at the student's face. Your point is ridiculous.
5) For countries like Japan, there is a separate winter and summer uniform, which would cost about the same as personal winter or summer wear.
6) No one in my school skips school because of the uniform. Let me repeat: absolutely no one. After about a year, the culture of uniforms will be there, and nobody will skip just for the uniform.
7) It will be harder to get drugs in school uniform. Students will have to take the school pride into consideration while wearing the uniform. Furthermore, if the students are seen engaging in illicit activities, it will be easier to identify them by the uniform, and punishment can be dealt to the offender.
8) Invalid. See my rebuttal of 6).
9) This applies to personal clothes as well. Invalid.
10) Your statement is invalid due to the fallacy of oversimplification. Firstly, uniforms need not be a single colour. Secondly you assume that uniforms are the only thing that the student can see, and the drab colours will make the student sleepy. If you can prove that students pay more attention to what other students are wearing than they are to the lesson, or if you can prove that students feel sleepy because their classmates are all wearing the same thing AMIDST a vibrantly coloured classroom, then I concede the point to you. If not, then your point is invalid.
This is a rebuttal coming from a current student as well.
Next onto my substantiative.
1) Uniforms will encourage discipline outside school. This is because students know that they can be identified easily outside school due to their uniform, especially if they are in a group.
2) Uniforms encourage equality within school. If uniforms (including uniform shoes and jackets) are not implemented, rich people will wear different, expensive clothes every day while less well-to-do children may wear the same clothes every day. This makes differences within students extremely clear, encouraging discrimination. Uniforms will ensure that at least this aspect of equality is achieved. People who try to modify the uniform can be punished in the same way as people who do not wear the uniform.
3) Uniforms are convenient. Students do not have to contemplate and spend valuable time deciding what to wear. The uniforms will also be safe, without any features such as trailing sleeves/skirts/hoods which may catch onto dangerous equipment.
4) Uniforms are cheaper overall. Students who wear less that 5 different sets of clothing to school for the entire 12 years tend to seem poor. A number closer to 15 would be more reasonable. However, 5 sets - no, 3 sets of uniform for that same student will be quite sufficient, as the student does not have to change clothes every day.
All criticism is appreciated. However, "convinced" would be appreciated more. Thanks.