This has been said before, but...
As far as I'm concerned, a flag is where the girl grew up. Country of birth and citizenship don't mean shit, since you can be born in a country, but otherwise have no connection to it whatsoever. Same goes for citizenship.
The general consensus is you can only have one flag per girl. If a girl has a multicultural background or grew up in multiple places, usually pick the one she has spent the most time in or where she lived.
As far as I'm concerned, a flag is where the girl grew up. Country of birth and citizenship don't mean shit, since you can be born in a country, but otherwise have no connection to it whatsoever. Same goes for citizenship.
The general consensus is you can only have one flag per girl. If a girl has a multicultural background or grew up in multiple places, usually pick the one she has spent the most time in or where she lived.