Questions on the Spartan Agoge

[Ludens]

One thing i've noticed about Macedonians attending the spartan agoge is that they tend to pick op the trait "Stunningly incompitent"

IIRC "Stunningly incompetent" just means they are in a city whose government is not compatible with their ethnicity-trait (say, Athenians and the KH type I government (Agoge)). The trait will disappear after they spend a turn somewhere else.