In Taiwan, several legal issues arose in the 1950s, when shim-pua daughters were registered as adopted daughters, or their male equivalent were registered as adopted sons. Because the couple were legally considered step-siblings, the Taiwanese common law forbade their marriage. Three judicial reviews were made by the Judicial Yuan to allow their marriage. Shim-pua marriage fell out of practice by the 1970s due to increased wealth resulting from Taiwan's economic success, making such arrangements unnecessary. One factor that accelerated the demise of shim-pua marriage was the establishment of compulsory public education in Taiwan, which compelled families to send all children, including daughters and adoptive shim-pua daughters to school. Greater exposure outside the home and education itself often created opportunities for shim-pua daughters to resist or escape the marriage arrangement.