The prescriptivist in me bows . . . namaste'
I wouldn't mind regional feats or origin tags but I would keep in mind so of the issues as you assigned the bonuses. I wouldn't want see Chultans be stronger for example.
Even more interesting would regional feats - have Thayans do additional damage vs vampires, give Rashemeni characters advantage on diplomacy checks with spirits . . . (and put in places where you need to negotiate with ghosts)
