It is characteristic of the steppe. Chestnut soils are less fertile than chernozems. The main reason for this is insufficient moisture and rather poor vegetation of these zones. Partially, these lands have alkaline conditions. Also, they often contain admixtures of sand and clay. And the place of their greatest distribution are the steppes. But, despite all these characteristics, they can be used for agriculture, provided that sufficient watering is provided.
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.