The juvenile category has specific visual expectations in ballroom competition that differ from both the children's and adult categories, and finding ballroom competition dresses that sit correctly within those expectations while meeting the practical movement and durability requirements of young active competitors requires a supplier who understands the category rather than one offering a generic range across all ages. Dresses that are too elaborate draw adjudicator attention to the costume rather than the dancing, while those that are too plain fail to use the visual element of presentation that is a legitimate part of competition scoring.
https://fd-company.net/en/balnye/detskoe/bejsiki offers juvenile competition pieces designed with understanding of the specific visual and practical requirements of that category rather than scaled-down adult designs or simplified children's pieces.