Parmandur
Book-Friend, he/him
Finally someone acknowledges what I've been telling all along.
I don't know you, but if you wanted a truly generic spellcaster you were looking in the wrong place, in 3rd edition the sorcerer was the most generic spellcaster around.
I don't know the passage by heart, but I know it well enough, it is funny how people just get the most superficial details of stuff. The original sorcerer was a generic sorcerer, the origin was not explicit and could be anything you wanted. The dragon thing was either something some sorcerers would brag about, something that could or not be true for some sorcerers, or a petty rumor made up by mean jealous wizards who resented not being that special anymore.
I've played Sorcerers in both 3E and 5E; not that different...