Some scenes in the US apparently went too far with that. When too many new people started coming in in their best vintage outfits, there were a few (current teachers) who made a point of going to competitions as casual as possible.
> In the past it has been the tradition that men asked women to dance. But this custom has gradually changed. Today, women should feel equally comfortable asking a partner for a dance, even in a formal setting.
Also fortunately these days many scenes are closer to "smash the patriarchy" idea and people are happy to dance with whoever. There's no role assignment, which also helps when there's no balance in genders in the room.