What is the ruling on some schools requiring female students to wear a specific uniform for the mothers' ceremony, which does not resemble Western graduation gowns?

Question:
May Allah reward you, Honorable Shaykh. This questioner says: Some secondary schools for girls ask the students in their third year of secondary school to sew a specific uniform, and then some of them wear it at the mothers' ceremony on the occasion of their upcoming graduation from secondary school. The description of this uniform is: First, it is in the form of a specific garment with long sleeves. Second, it is worn over the school uniform. Third, it does not include head coverings, and it does not break the Western graduation gown or the cap. Fourth, its cost is approximately one hundred riyals. The question is directed from the students to your eminence: Is this clothing permissible? Is it permissible to sew it and wear it at this ceremony? And what is your guidance?

Answer:
We do not think that this clothing should be adopted or permitted for this occasion. This occasion does not require a specific uniform. What is required is that the student chooses modest clothing. As for imposing a specific uniform on her for the ceremony, that is not appropriate, because these are traditions that are a source of fitnah (trial, discord or temptation), such as dressing the students in a specific uniform for the ceremony or for graduation. This is among the corrupt traditions. Also, it involves extravagance for the student, wasting the body through sewing or wasting money, and there is no need for this, no need for this.