Is it significant that it is Lucy and Susan who accompany Aslan back to the Stone Table and stay with him?

I got to thinking this question while we were talking about Lewis and gender. It just seems interesting to me that only the girls followed him and stayed with him. Could this be because Lewis, being a product of his world, uses the typical female traits we usually associate with girls? That they are good at comforting people and have maternal instincts? Or could it be because that girls are allowed to cry and have that be completely okay with the audience that reads the book? Many boys are brought up with the notion that crying is not okay for them unless they want to be known as crybabies or crying is alright only for major reasons such as a death in the family and even that should be in secret. I was just wondering what everyone else's ideas or thoughts were about this.