In PFRPG with their draconic ancestry do they qualify for the Draconic rituals and feats used by the Kobolds?
This would provide at least one type of Sorcerer the Draconic Sorcerer to get standard casting as an option in game.
Wouldn't mind seeing a PF ritual for all sorcerers which allows them to gain standard spellcasting as an option with some sort of mechanical cost in game.