What do the two spins on the boy's head represent?

Boys represent mother's longevity and will be good to her. On the other hand, if it is a girl's double spin, and it is the first daughter, the mother will not be very good, and the second daughter will have nothing. In short, both hyun are smarter. I'm from Zhejiang. I think so myself here, and so do some relatives at home. Not nonsense.