Some of them do have long training in music. Of course sometimes when you come from a small town, or a middle class family, you might be learning since childhood but not from a good teacher. But most of these girls have some training or the other. Shifa is learning from Ravindra Jain, Richa learnt since she was seven, Priyanka sounds like she has classical training etc. The only one I know of so far who is completely untrained is Prashant from the guys. Rehan doesn't sound like he has much training either. But I think all the girls are trained. In many middle-class families, it is usual for the girls to get some musical training while the boys may go for sports or something. But I agree with you, they were pretty good, and should get even better with a little experience. 👏