Not what is logical... I would add that in context. So in my world , it is based off of reality, but what if dragons and magic were real? In this instance, logic still applies. Perhaps it could be reworded to within reason. If that is the case, then everyone should have at least some magical training, or nearly anyone who takes on a profession. This might leave for BGC's, (Background characters) like farmers, blacksmiths etc, to not have magic. Arguably even they could have magic, due to certain skills, or past professions even. The goal of my game in particular was to take pretty much any architype in pop culture, and be able to recreate a reasonable facsimile to be role played within the game. Thus avenues for specific powers are related to your core professions and then backed up with skill choice.