In my opinion, the separate education of girls and boys has no advantages. It is true that the education of individual schools can be more effective, because boys and girls are different in many ways. They have different ways of thinking, they can hold classes in different schools in different ways. But the school gives the same knowledge and skills.
Single schools have a big disadvantage, it can contribute to non-contact with the opposite gender. They must be able to communicate with each other, acquire new knowledge, understand each other, which is very necessary for the future.