A college in Seine-et-Marne, France, has introduced a new rule prohibiting students from wearing sports team jerseys, especially those associated with football clubs like PSG, Arsenal, and Real Madrid. The regulation was put in place during the World Cup and is part of the school’s broader dress code, which also bans items like flip-flops, crop tops, and the pairing of flip-flops with socks. The decision followed reports of student conflicts tied to rivalries over wearing club jerseys. The local education authority, the Créteil academy rectorate, confirmed the rule was aimed at reducing tensions and creating a more peaceful environment for learning. The school administration stated the policy was approved by academic officials but provided no further details. The ban specifically targets jerseys featuring popular athletes such as Kylian Mbappé of PSG, raising questions about how the rule will be enforced in practice. Some teachers have expressed uncertainty about how to handle related items, like PSG branded bags. While private Catholic schools have long restricted sports attire outside of physical education, this is the first time a public college in France has implemented such a policy. A review of other schools' regulations showed no similar restrictions in place. Reactions to the new rule are mixed. Some students seem indifferent to the change, while others feel it is unfair. Parents have raised concerns about students who may not have many clothes, noting that the school would provide a t-shirt if necessary. Educators have differing views—some say they haven't noticed issues related to football jerseys, while others admit managing the rule could be challenging. A local football club president observed that wearing team jerseys is a common practice among young people, often tied to a sense of group identity and belonging. The policy highlights the ongoing debate about balancing personal expression with maintaining a focused learning environment. While the school aims to reduce conflicts, the effectiveness of such a rule remains uncertain. The situation also reflects broader discussions about how schools should handle cultural and social trends in student behavior.