In our school, some of the street lights have been broken for a long time like libraries and moon towers around street lights. It is dangerous to walk at night without lighting. You don't want when you back to the dormitory in the evening have encountered such a situation, right?
One day if you go out with friends or something that you can't go back to the dormitory before the night, would you like to walk in the street lights broken on the road? Of course you do not. Lighting is very important at night.