I don't think there are any disadvantages. I think that is grossly overstated that one needs to have contact with the opposite sex right through the whole of life, in the classroom and outside the classroom and at all ages.
我觉得没有任何坏处啊。有
觉得一个
一生各个年龄段,无论在校内还是校外,在生活中的所有方面都需要接触到异性,这实在是太夸张了。