Theres no problem with susan. C.S. Lewis was using narnia as a very christian metaphor, for… come to think of it, lots of things. Included in that metaphor was a Peter Pan esque commentary of childhood. Susan grew up too fast. Thats it. Flawed as it may be, thats the bit. Misogynistic as is seems on reflection, i dont think it was intended that way.
Boys never grow up. If you have full grown man in your life, you already know this.
If you dont, you are missing out. Want to have a child without actually having a child? Make guy friends. Everything will make sense after that.
Yeah thats how it was here after the reddit fiasco.