Land-lost farmers chose cities and rural areas at that time. Can they change to urban social security now?

Land-lost farmers chose urban and rural endowment insurance at that time and could not change urban social security. Employees should participate in the basic medical insurance for employees, and employers and employees should jointly pay the basic medical insurance premiums in accordance with state regulations. Individual industrial and commercial households without employees, part-time employees who have not participated in the basic medical insurance for employees and other flexible employees can participate in the basic medical insurance for employees, and individuals pay the basic medical insurance premium in accordance with state regulations. The basic medical insurance for employees, the new rural cooperative medical system and the basic medical insurance for urban residents shall be implemented in accordance with state regulations.

"People's Republic of China (PRC) Social Insurance Law" Article 20 The state establishes and improves a new rural social endowment insurance system. The new rural social endowment insurance combines individual contributions, collective subsidies and government subsidies. Twenty-first new rural social endowment insurance benefits are composed of basic pension and personal account pension. Rural residents who participate in the new rural social endowment insurance meet the conditions stipulated by the state and receive the benefits of the new rural social endowment insurance on a monthly basis.