It could be cute in the FE/ME sort of way, I guess. But with how SE writes the narrative of the story, including the WoL being a pretty flat character there for players to transpose who they think they are atop it, I feel like it'd be a pretty boring system. Especially if there were limited dialogue options that all sort of mirror each other in their own way, like how a lot of quests give your character the illusion of choice when granting two options.

And... underage characters like the twins is... just wrong on an ethical level, granted they don't look a day over fourteen. Which leads me to: I don't really know if I want to know where the playerbase would go with this.

But if they did implement it, just make all the characters who they deem "available" romance-able/etc... regardless of the WoL gender choice. Those limits are boring and stupid.

Either way.

I'd pick Aymeric.