User blog comment:Warmachine375/Where was Team CFVY when Velvet was being bullied by Cardin Winchester and his gang of bullies?/@comment-173.58.100.7-20150526104017

From an in-universe standpoint, they might have different classes or they were busy so they couldn't protect her.

From a meta standpoint, CFVY didn't exist at the time and Velvet was a one-scene-character to showcase Faunus/Human interaction.

- Surana