OK fair enough. For myself its all meta, but I know there will be others who want to preserve a sense of consequence for the initial choices made, and to have everything that happens afterward be consistent within some kind of in-game reality or rationalization.
In that case they can do the split approach and keep it totally in-game.
1. For Make-up a looking glass icon in Char Sheet tab accessible at any point, no cost in gold.
2. Hair Styling (cuts/dyes) a specialty vender/market or a camp follower who is easy to access. Maybe Shadowheart helps you bleach your bangs at camp? Lol whatever works. Small cost in gold for that.
3. Tattoos (and Magical tattoo removal) provided by Nettie or Abdirak, for a moderate cost in gold.
4. For changes to major stuff like heads, skin color, eyecolor, phenotype, sex, voice, and the like, some sort of wizard/witch, who sells the requisite artifact or potion to unlock those aspects of the appearance tab, for a large cost in gold.
That would cover everything and provide a narrative rationale for each, provided it wasn't a total pain to access the various locations where such NPCs might be found.
