It's like learning the sword or any other skill. Anyone can do the simplest stuff, then they'll run into a steep learning curve early on. Most who get past that will be middling, either not put in the work or have no talent for it. A few will be great at it. [ Then there's the rare Sorcery Genius, Lina's voice supplies inside his head. ] And some will blow themselves up trying to be something they're not.

[ A fact about which Zelgadis has more sympathy than his tone would indicate. Wanting power is a hard path to walk, especially when you at last get near your heart's desire. ]

So technically anyone has the potential to do it if properly taught. Technically.