The population of some countries includes a relatively large number of young adults Some developing countries recently face a situation that the population of young adults is much larger than the number of older people.While there are several problems may caused, I still believe that the benefits on economy and society overweigh the drawbacks. Countries with overpopulation of young people may cause the severe situation of unemployment.When students graduate from the college with an ambitious heart, they start to find the strong competition for jobs.The oversupply of labor can lead many other problems.For example, the unemployment may cause a young people to commit a crime of pilfering for survival. It can be worse that people may try to intimidate others for getting money under the high pressure of living. However, there are lots of advantages that can be brought by the young adults.They have better ability on creating ideas than the elder and creation is one of the most competitive element of a country.Also, they can increase the productivity to boost the economy. What’s more , young people are not only always full of energy and enthusiasm which make the workplace more vibrant but also much familiar with the new technology and informations. These reasons make me convinced that young adults are the foundation of a country and they can bring a better future. In conclusion, I believed that it is advantageous for a country to have more young adults that elderly people.