In fact, the governments allow on-campus students to get married before they complete their course. There isn' t a regulation proclaimed in writing to forbid marriage of on-campus students. But it must affect those triers.
In my opinion, it is unnecessary to forbid on-campus students to get married before they finished their college, however, it shouldn' t be advocated or encouraged. Because, for on-campus students, their play the role as learners. Their main task is to learn. If they married, their school work must be affected and they may not graduate favorably or may not be capable for future works. So, I believe: almost all on-campus students would deal with the question reasoningly .