Is it reasonable to require parents to submit salary statements for kindergarten enrollment? What is the specific situation?

Is it reasonable to require parents to submit salary statements for kindergarten enrollment? What is the specific situation? A kindergarten in Hebei requires parents to submit their salary records for enrollment, and the Education Bureau responds

On July 30, the No. 1 Kindergarten in Jingxing County, Shijiazhuang, caused controversy by requiring parents to provide detailed salary statements in its enrollment announcement. @EmergencyCall learned that the kindergarten mainly recruits children of employees of county-level agencies, enterprises and institutions. A kindergarten employee said that this move was to prevent parents from using false work certificates to occupy admission places.