Perhaps. I guess when it's described as a "family" I am thinking of a much smaller group. If its more like the bloodlines of the Dragonmarked houses in Eberron, then I could see people not knowing they were members of the "family". However you'd still be forced to learn from other "family members" so you'd come under their influence (unless you include sorcerers).
Or perhaps sorcerers aren't members of the bloodline at all, just abberant developments in evolution? (if you take this approach though, you may wish to tweak the sorcerer class... actually heck, the sorcerer class needs tweaking regardless!)
Or perhaps sorcerers aren't members of the bloodline at all, just abberant developments in evolution? (if you take this approach though, you may wish to tweak the sorcerer class... actually heck, the sorcerer class needs tweaking regardless!)