One of the most powerful myths in Thai culture is “blood is thicker than water” or “biological family matters the most,” and that nuclear family is the greatest family structure of all. This myth emphasises the responsibilities of family members, leading to regulations and policies that prioritise biological family (e.g. paid family leave). However, circumstances have forced many to sever familial ties and choose kinship outside the legal and cultural convention of family. Therefore, when discussing policy related to care or population, policymakers must bear in mind other possibilities of family structures and bonds as well.