You have continued with her efforts to get a better understanding of the Avernite culture, much of which you miss due to generally interacting with Avernus' moves and shakers who are usually at least a hundred years old. In particular you focused on the general view of scars within the population.
Given the danger of life on Avernus and its medical technology almost everyone gains scars over the years, and can have them removed if they want. Given this it is not surprising that 'How to deal with scars' has entered into the mainstream culture. To begin with scars are split into several distinct categories based on both the type of the scar and how it was gained. Each type is either kept untouched, reduced by left visible or removed based on what categories they fall under.
The first category are those scars that are large enough or inconveniently positioned enough that they have a noticeable effect on your ability to defend yourself. These scars are always either reduced or removed, and keeping them is viewed as an arrogant and stupid boast of capability. This overrides all other categories.
Next are 'Teaching Scars', scars gained in experiences that taught you a valuable lesson. Generally these scars are kept intact where possible, so that the lesson they taught is never forgotten.
Then there are 'Heart Scars', scars gained in an act that has great significance to their bearer, such as shielding a loved one. Again these scars are kept intact as a remembrance of how they were gained.
The fourth type of scars are 'Story Scars', scars gained in an experience that makes a good story. They are usually reduced in size but kept, so that people can ask about them and so you can show them while telling the connected story.
Then there are 'Scars of Shame', scars gained in an experience that you are ashamed of that did not teach you anything you did not already know. Sometimes this is a result of doing something stupid, and sometimes it is a result of scars gained in failure. These scars are generally removed, so that they do not act as a constant remainder of how they were gained.
Finally there are 'Meaningless Scars', scars that have no particular importance to you, did not teach you anything, are not connected to an interesting story or moment of shame. They are generally removed in order to avoid the awkward moment where someone asks for the story about a scar and you do not remember how you gained it.