Hello! As far as I know, preschool education is generally conducted by professional institutions. Among them, there are not many public welfare activities open to the society. Volunteer service for special children (deaf children, autistic children and mentally retarded children, etc.). ) It lasted for a long time in the past. You can register a voluntary organization under the Central Committee of the Communist Youth League or the local civil affairs department to find out if there are any activities suitable for you at present.