Introduction <p>Research in Taiwan regarding courses promoting equality for same-sex family parenting is critical as Taiwan celebrates one year of legalising adoptions for same-sex couples and universities attempt to implement gender diversity initiatives. The purpose of this study was to examine how university students’ attitudes toward same-sex family parenting changed regarding individual and normative opposition, following a semester course in responding to the same-sex marriage policy.</p> Methods <p>Ninety-eight Taiwanese undergraduate students participated in a contact theory and self-reflection-driven course. They discussed gender equality and same-sex marriage policy, attended the Taipei LGBT + Pride Parade, and made public presentations regarding their reflections. The pre-test was administered in mid-September 2018, and the post-test was administered at the end of December 2018.</p> Results <p>The researchers identified that normative opposition was significantly stronger compared to individual opposition; following the course, both males and females’ individual and normative opposition significantly decreased.</p> Conclusions <p>This research emphasises the need for further development of courses focusing on attitudes toward parenting in same-sex families, to identify a curriculum which decreases stereotypes and develops support. Moreover, it is important to identify where gender and sexual orientation stereotypes overlap as both impact same-sex families.</p> <p>Policy Implications.</p> <p>This study highlights the need for integrating empathy-based gender and sexuality education into university curricula. Policies should support courses that include contact with same-sex families and reflective activities to reduce bias. Institutionalizing such programs can foster inclusive attitudes and strengthen support for same-sex parenting in Taiwan’s evolving social landscape.</p>