Real Betis Balompié and its fans are deeply connected to family tradition. A LaLiga study reveals that 67% of football fans in Seville recognize having received their passion for their two teams from their parents and grandparents. This figure places Andalusia as one of the communities where football fandom has a more deeply family-based origin. The study highlights that Sevilla FC is the LaLiga club whose fans recognize to the greatest extent having inherited their passion from parents to children, with 64.85%. On the other hand, Real Betis Balompié stands out especially in intergenerational transmission, with 24.01% of fans declaring that they inherited their sentiment from grandparents to grandchildren. The research also emphasizes the importance of the paternal figure in the transmission of fandom, with 74.47% of fans who inherit their passion doing so due to the direct influence of their father. Football in Andalusia is lived as an emotional heritage that spans decades and reinforces the idea of community and belonging. The passion for football in Andalusia is not limited to the ninety minutes of a match, it is inherited and transmitted in family conversations, in worn-out scarves, and in shared memories. Real Betis Balompié and Sevilla FC are the engines of family legacy in the region, and their historical rivalry is a key factor in the transmission of fandom from generation to generation. The province of Seville is the territory with the greatest football legacy in Spain, and the LaLiga study confirms that football fandom in the region is a tradition that dates back several generations. Real Betis Balompié and Sevilla FC have a very rooted social base in the community, and their influence on the transmission of fandom is undeniable. The research also reflects new dynamics, such as the so-called inverted inheritance, where children influence their parents. The LaLiga study is an example of how football can be a tool to understand culture and society in Andalusia.