What is the nature of social security and why are there so many preferential policies

Social Security is a guaranteed insurance, as long as you enroll and pay contributions for more than the required number of years, you can enjoy a lifetime pension and medical insurance benefits when you reach the legal retirement age.

Social Insurance (Social Insurance) is a social and economic system that provides income or compensation for people who are incapacitated, temporarily out of work, or have suffered a loss due to health reasons.

Social insurance programs are run by the government, which forces a certain group of people to pay a portion of their income as a social insurance tax (fee) to form a social insurance fund.

Unless certain conditions are met, insured persons receive a fixed amount of income or compensation for losses from the fund.

It is a redistributive system whose goal is to ensure the reproduction of material and labor and social stability.

The main items of social insurance include old-age social insurance, medical social insurance, unemployment insurance, work injury insurance, maternity insurance, etc.?