Yes that hair. It sounds very pretty but think of the weight of it. Unless Nat's got really thin hair, it's going to be very heavy, heavy enough to give him headaches and pull his head back when it's wet. I find Nat to be one of the most frustrating characters in the series because he has a lot of potential but nothing comes from it. LKH drops some little hints that would be lovely to explore, and they would have the great benefit of a plot being attached to them, but they are forgotten.