When did you suddenly realize that China is really stepping into an aging society?

In 2000, the proportion of China's population aged 65 and above reached 7.0%, and the proportion of the population aged 0-14 years was 22.9%, with the initial formation of an old-age type of age structure, and China began to enter an aging society.In 2018, the proportion of China's population aged 65 and above reached 11.9%, and the proportion of the population aged 0-14 years dropped to 16.9%, and the degree of population aging continued to deepen. It took only about 18 years for the age structure of China's population to move from adult to old age. The acceleration of population aging will increase the pressure on social security and public **** services, weaken the demographic dividend, and continue to affect the social vitality, innovation power and the potential growth rate of the economy, which is an important risk and challenge to population development in the new era.