The way of improving road safety is one of the most urgent task that people need to have serious considerations. In this situation, some argue that road accidents can be prevented by rising the legal minimum age of getting driving lisenses for a car or motorbike which need to drive throught roads, but not the side-walk. On the contrary to this argument, the others believe this idea do not work for reducing accidents happened on roads. I strongly agree with the later opinion because it is no relations between the driver's age and the frequency of accidents, moreover, there are other reasons which require to be more strict than age limitations such as driving with alcohole and a treatment for elderly drivers.