translation.en: And you think about it, you know, grade four -- my wife and I, we say age seven is the age of reason, so they're into the age of reason. And they're pre-puberty.
translation.zh: 大家都知道 四年级，也就是七岁左右的小孩 他们刚刚开始发育，也刚刚开始认识社会