The population of elder people is increasing. The elderly need more attention and resources than us. Elder people are not as healthy as the younger people, and they cannot do so many things as us, either. In my point of view, however, it does not mean that the elderly are useless people. There are still ways that the elderly can devote to the society, such as doing volunteer work in the museum after their retirement. Keeping on engaging to the society can make the elderly feel less bored, and they can also make some new friends. In the meanwhile, they will not become the heavy burden in our current life.