A lot of camgirls think they can just smile and look pretty.
The Russian ones do so well because they're actually attractive and they sometimes get nude or at least tease and they also have connections and stream across multiple platforms
The girls who just sit on their bed and do nothing and expect money are the ones who fail.
Case in point Beatrice11_pika, beautiful girl but did nothing snd didn't start getting nude until the end of her career and when she started involving her bf. Before that she just sat and stared at the camera or smoked.
She got like 50 viewers max.