Shargh Network's interview with Arezoo Khavari's father: My daughter killed herself because of what happened at school / The principal did not let my daughter into the classroom

Arezoo was a ninth-grade student and was from Afghanistan. He was studying at Kowsar Shahr-e-Rey High School in Tehran and had two older brothers.
Arezoo's father says about the cause of his daughter's death:
I don't want the situation of my daughter's case to be jeopardized, I want the case to come to a conclusion. But just for a week, every day and every hour, I thought that if she had a simple phone and they allowed her to enter the school, I would have been able to call the girl. I wouldn't let that happen, I would have given him guidance.
The day before, my daughter had gone to camp. She wore jeans at the camp and danced and rejoiced on the way. It seems that the manager gets angry. The next day, he went to school in uniform and the principal in the classroom did not let him in. He wanted to punish her. They told me that he was wearing jeans and was dancing in the camp.
When my daughter was not allowed to enter the classroom, she left the school and entered a building, from where she threw herself. No one came to investigate why the door of the building was open. Why was the school door open? Why did Arezoo drop out of school? Why wasn't the janitor at the school door? Why didn't the principal let him into the classroom?
This principal misbehaved with my daughter. I complained to the principal, I just want this principal to be punished for the way he treated my daughter, so that another girl does not commit suicide because of these strictures. These are little girls, they have low understanding, they quickly become emotional, and then she killed herself.
My daughter has been studying at this school for nine years and has had no problems, but in the two years that the principal of the school has changed, she has suffered a lot of damage. The principal misbehaved with my daughter. "This rigor was for all the children, and it wasn't just for my daughter."