"The State separates the wheat from the chaff. Some festive gatherings are authorized because, in a way, they are part of the established order. Others are banned because they go beyond institutional boundaries and are considered to potentially pose a threat to public order." (€)
https://www.lemonde.fr/en/france/article/2026/06/22/free-parties-in-france-come-under-increasing-surveillance_6754730_7.html