The concept of natural unemployment is typical for market and mixed economies. Natural unemployment includes such a decrease in the level of employment, which arises as a result of changes in the structure of the labor market: the emergence of new vacancies and the disappearance of old ones. Sometimes state policy contributes to its emergence.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.