KUALA LUMPUR: Since the beginning of the year, a “mother” has been trying to enrol her seven-year-old “son” in a primary school. However, Tan Guat Hoon has not been able to do so as she is unable to produce his birth certificate to register for school. The 37-year-old widow is not the boy’s biological mother. Tan told reporters at her home in Jinjang Utara here today that the boy’s mother…