>>30139
My schizo theories: they do it for one of two reasons:
1. Because other girls convince them to do it as sabotage because they are jealous of them in some way, mostly being prettier.
2. They do it as they are ugly in the face so it kind of distracts from that.

Think of it, you have Mia probably convincing Starfire to do it as Starfire was prettier. And for the second case... Kef.