Actaea

Yes, I see. Now, let's reason like this. We have two lions and one lioness in the enclosure. One lion is dominant and has essentially claimed the lioness for himself. What do we do? Well, let's give the lions some catnip so that the second lion can have some fun and won't be so upset. But... wouldn't it be better to separate the lions into different enclosures and give the second lion another lioness? Wouldn't that solve the root of the problem instead of doing something unclear for an unclear reason?

Oh... I don't even know what to say. It seems we are talking about completely different things. Okay, let's go through it step by step.
1) You're talking about the root of the problem, but you're considering a different problem. As I understand it from the text, it's something like, "we need to solve the problem of poverty, not just hand out candy to the poor so they won't be so upset."
But I'm talking about a different problem. If we consider my point of view in relation to the lions, the problem looks like this: one lion was born albino and is not accepted by the pride. Of course, you could put him in a different enclosure, and that's an option. But for the (lion) society, I think it would be better if he lived with everyone. Therefore, you could dye all the lions the same color, and then they wouldn't perceive him as an outsider.
2)

The same applies here. If there's a chance that children will treat a classmate with a lower socioeconomic status badly (although it's really hard to imagine, but let's assume), then what do school uniforms have to do with it? Implement a social program, some kind of charity... Sponsor schools so that they can organize help for their poor students and buy clothes for those who don't have the money for it. After all, that's what would solve the root of the problem, right?

Here, understand me correctly, Ment. I was asked the question, "why does a uniform promote pacifism?" That's all. I didn't say that uniforms are a means of fighting poverty, etc. I agree that a good solution to fight poverty is "social programs, charity," etc.
Moreover, uniforms are not introduced in order to "avoid conflicts between children over clothing." It's just a positive side effect. And uniforms also instill discipline, and it's convenient for teachers (at least I heard positive feedback when I was in school).

I disagree with this position. It seems like all of this is trivial, but at a young age, it really matters, even when it's not consciously realized. Young children are very impressionable; it seems like nothing happened, but in reality, any little thing will definitely settle in the subconscious.

Of course, children are more unstable and impressionable, and they are more easily influenced. But that's why they have parents and teachers. If a child has some kind of problem (they are being teased, someone is looking up their skirt with a mirror, they are being thrown with a dirty rag, they don't like the school uniform), the child should know that they can turn to someone with this problem. And then the parents, after listening to them, will help find the right solution to the situation, perhaps encourage them, or explain the benefits of a uniform or porridge in the morning.
Of course, if a child is in a vacuum, they may develop complexes. But that's not a problem with the school uniform.

I haven't completely forgotten my time as a schoolchild. And honestly, when you have teachers who don't exert authority. When you have a semi-free school uniform (we just had to wear gray jackets, of any color. And no other requirements. And the jackets themselves were easy to have on hand, not necessarily to wear all the time). When you're not forced to keep a diary, but instead you just go to school with a university grade book. All of this is incredibly motivating! You just feel like you can move mountains, you're doing something, not just wasting time.

At one time, I had a uniform that was strictly fixed in color, etc., and then I had a semi-free one, with any color, and it wasn't necessary to wear it, like yours. So, I personally didn't feel a big difference. There was only one plus, that it was easier to buy a uniform because you didn't have to worry about the color.
Regarding clones... well, do you think that a uniform somehow limits the development or imagination of a child? And will "clones" be stupider than those who have a free uniform?