We're picking back up on this then? Fair enough, although I'm afraid I won't have long to spend on it today (I'd be surprised at a second post on the subject today), have studying and Dark Souls to do. Finals are coming up, after all.
Anyway, I feel we've drifted from the original topic, but its an interesting tangent none the less. World building is always something I find interesting.
To be frank, most people don't have talent for many things right off the bat. Those who excel far in the field aren't those with natural talent, but more often simply those with the persistence to pursue that which they wish. Its simply a matter of practice, and if the skill is useful it will draw those with that persistence.
Am I saying everyone will be a full fledged mage? Nah, most wouldn't care to, but in the same way history and mathematics are taught as a staple in the educational system, I wouldn't be surprised to see a society where any formal education has that of, at the least, basic magic. Considering basic magic is a required course to be an adventurer, I wouldn't be surprised if it would be the same for any who's from a university (assuming such or its kin exist, which is likely). Thus the more urban the environment, the less magic is jealously guarded, the more minor magics you'll see pervade the society. Why wouldn't you pick up a basic spell or two if it would be really helpful, after all? Who says you have to go full bar into it.
Of course, that would bring about regulation depending on the spells which are taught, how they can be used, circumstances, perhaps prohibited spells to be learned by typical society (probably similar in how crossbows were banned for a period of time, although I don't believe many listened to the decree if I recall).
Considering the sheer density of magic in Ross' setting, I wouldn't be surprised if this was the case in some fashion. Military standard enchantment requires a work force far larger than just a few, after all, specially if it was as dangerous as you play it out to be. Its been pointed out that the mages in our group far outstrip those typically found, so unless you guys can enchant literal tons of equipment in one go, chances are that large magical workforce is a reality.