Haikyuu!! has had a significant impact on the perception of team sports by popularizing the idea of teamwork, determination, and passion in achieving goals. The anime and manga showcase the importance of working together, overcoming challenges, and never giving up, which has inspired many viewers to appreciate and participate in team sports. Additionally, the emphasis on character development, strategy, and sportsmanship in Haikyuu!! has influenced how people view team sports and the values associated with them.