Age and Experience are important to the workforce in any country. How true is this?

Do you think that age and experience are important to the workforce in any country?
Recently, Singapore is facing a growing problem. The percentage of old people in the population is increasing. This is known as ageism. How did this problem come about? Let me share it with you.

In the past, after the fearful and uncertain days of World War II, there is a period of peace in Singapore. Many couples at that time saw that it was the perfect chance to have children. As a result, there was a baby boom in Singapore. The population of babies increased dramatically, until the government had to stop the surge in the population. After the problem was resolved, everything went back to normal. As the years went by, Singapore began to enter a modern era, and the birth rate decreased. How did this become a problem? Well, the babies that were born in the baby boom eventually grew older as the years went by. They make up Singapore's senior citizen population today! The senior citizen population is huge compared to the percentage of young people because of this reason.
As everyone knows, experience is very important to the workforce. If a person goes to a job interview and is asked whether he has undertaken such a job before, and he says yes, there is a very high chance that he will be hired. Experience is important as people with experience will be more efficient in dealing with problems in their work as they have faced them before, whereas people without experience much seek help or attempt to solved the problems themselves, which takes up a lot of time.
Many companies prefer younger employees to older ones. Old people are more fragile, so they cannot take on some jobs. Young people are more active and strong, so they have many advantages over older people in many areas. Furthermoe, old people can be stubborn sometimes, but young people are more flexible and IT-savvy. I think that experience is important to the workforce, but not age. Age can hinder a person in his job, but experience can aid him to overcome difficulties faster.
Nowadays, it is increasingly difficult for old people to find jobs. The government is encouraging companies to hire more older people. We are also currently facing an economic downturn, so the problem is worsened. Some senior citizens want to work even when they have reached their retirement age, mainly because they are passionate about their jobs or they want to pass time. Most of the senior citizens have the mentality that they have reached their "golden age" and should spend their rest of their lives relaxing. Most old people have experience, while most young people are inexperienced. However, it does not mean that the older you are, the more experienced you become. In this modern era, Singapore has progressed so quickly that most old people are unable to catch up. Young people are equipped with many skills that most old people lack, such as knowledge of IT, programming and anything to do with technology. This is the reason why experience is more important than age in the workforce.