I think a nice glistening scale/horn is look favourably within Auri culture, just like having good good skin, hair and nails are viewed highly in most of our real-life culture.
How they care for them is the question. I think they probably use using to get rid of dead/molting scales like a hard bristle brush or pumice and then apply lotion, oil or whatever that makes things shiny
The upkeep of scales/horns might be more common amongst the Raen due to living in Doma and being in positions of authority whereas only a select few Xaela tribes can or capable of caring for their scales
How they care for them is the question. I think they probably use using to get rid of dead/molting scales like a hard bristle brush or pumice and then apply lotion, oil or whatever that makes things shiny
The upkeep of scales/horns might be more common amongst the Raen due to living in Doma and being in positions of authority whereas only a select few Xaela tribes can or capable of caring for their scales