
Just to add to this, we know that Keeper offspring are naturally female more often than male (dev post); based on the description of Seeker culture and use of "race" in that post instead of "clan," I think it's safe to say the same is probably true of Seekers as well.
An additional social consideration for Seekers is that nunh and tia interested in becoming nunh are probably relatively less likely to leave their tribes. A nunh who leaves won't be nunh for long (and would be societally shirking his duty to the tribe), and tia who leave will miss out on potential opportunities to battle for dominance. For Keepers, there'd probably be a social pressure for males to stay in the relatively small family units to keep the family line from dying out for lack of... "genetic material."
When you combine the rarity of miqo'te in lore with their female sex ratio bias, throw in the stated lore that the males are more reclusive and territorial than the females, then add in these probable (albeit speculative) social pressures, it makes sense why male miqo'te would be fairly rare and rarely seen in Eorzea. They'd have been around, but much like, say, encountering an Inuit in Egypt, seeing one would be a rare experience. It's entirely possible that a character, while being aware of them, never personally saw one until recently.
That said, until and unless new lore contradicts it, we can only go on what the dev posts and main site say, which is that miqo'te are rare and male miqo'te are rarely seen outside of their tribes (ignoring for the moment how exceedingly common they're going to be as PCs). By lore, a male miqo'te growing up outside of a tribe (or a close-knit family unit in a city-state) would indeed be a relatively uncommon thing, though I doubt most Eorzeans would be shocked by this; I'd put the reaction more at "huh, weird" than "OMG WTF?".
An additional social consideration for Seekers is that nunh and tia interested in becoming nunh are probably relatively less likely to leave their tribes. A nunh who leaves won't be nunh for long (and would be societally shirking his duty to the tribe), and tia who leave will miss out on potential opportunities to battle for dominance. For Keepers, there'd probably be a social pressure for males to stay in the relatively small family units to keep the family line from dying out for lack of... "genetic material."
When you combine the rarity of miqo'te in lore with their female sex ratio bias, throw in the stated lore that the males are more reclusive and territorial than the females, then add in these probable (albeit speculative) social pressures, it makes sense why male miqo'te would be fairly rare and rarely seen in Eorzea. They'd have been around, but much like, say, encountering an Inuit in Egypt, seeing one would be a rare experience. It's entirely possible that a character, while being aware of them, never personally saw one until recently.
That said, until and unless new lore contradicts it, we can only go on what the dev posts and main site say, which is that miqo'te are rare and male miqo'te are rarely seen outside of their tribes (ignoring for the moment how exceedingly common they're going to be as PCs). By lore, a male miqo'te growing up outside of a tribe (or a close-knit family unit in a city-state) would indeed be a relatively uncommon thing, though I doubt most Eorzeans would be shocked by this; I'd put the reaction more at "huh, weird" than "OMG WTF?".

The Freelance Wizard
Quality RP at low, low prices!
((about me | about L'yhta Mahre | L'yhta's desk | about Mysterium, the Ivory Tower: a heavy RP society of mages))
Quality RP at low, low prices!
((about me | about L'yhta Mahre | L'yhta's desk | about Mysterium, the Ivory Tower: a heavy RP society of mages))