In this era, many individuals tend to live longer in some parts of the world, which makes the elderly continuously increase in these countries. Some people believe this situation will be beneficial because these experienced people can teach their skills to the modern generation of children. Conversely, these senior citizens will cause many troubles, like in China, where many employees have to work harder to support their old parents. I personally hold the belief that the disadvantages of having an aging population outweigh the advantages.