
Originally Posted by
Vyrerus
That singular passage is leaving room for its author to be wrong, and that is pretty much it. Name one notable pureblooded Garlean that is capable of using magic. I won't wait, because you cannot. They have yet to show even a single one that wasn't possessed by an Ascian or treated to a special procedure.
That same book also says,
"The Empire has banned religion, seeing it as a barbarian practice that all too often results in the summoning of primals. Many of the inhabitants of Garlemald proper are atheists, a fact attributable to their biological and spiritual inability to harbor and wield aether-based magicks. As theologians believe that religion can only truly develop alongside magic, it is little wonder that the Garleans are disinclined to keep any faith."
Something that is integral to the WoL is that we all believe in a patron deity from The Twelve. As a Garlean pureblood it wouldn't make any sense for us to believe in one of The Twelve. That would have to be removed from character creation, specifically for Garleans. Then Garlean players would feel left out.
Also note that the WoL's age is rather young, mid 20s to late 30s. This means that a pureblooded Garlean WoL would have been born after the introduction of Magitek to their society, and would have even less of a reason to leave Garlemald, to learn arcane arts, and to come be a hero in Eorzea.
As for the Echo, we've been shown half-blooded Garleans can have it through Arenvald. Never a pureblood, though. I'd posit that since the Echo is tied to a being's aetheric waveform, yes, it would be entirely possible for Garleans to have the Echo, but in my opinion it would lay dormant until they learned how to manipulate aether. If their body even could. Of course, even that wouldn't be enough to know they had the Echo. They'd have to encounter an event that let them know they had it. Considering the Echo lies dormant even in individuals who can readily manipulate aether, who's to say that a pureblooded Garlean would ever meet the right condition short of artificial means to precipitate the activation of their Echo? Further still, if Garleans could have the Echo, then why would it be a surprise to them to learn about such a thing from their warring with Eorzea?
To let us play Garleans would be to make the lore bend over backwards to accommodate the possibility. It would break too much while giving so little while also injecting dissonance into nearly every sidequest and cutscene. No thanks.