That's bullstuff because duel citizens can travel back and forth.
Tell her she's a liar.
You're not only wrong, you're also stupid and an starfish. Please stop talking about things you don't know anything about. I've been researching this order for the purposes of multiple classes and interviewing dozens of people directly affected. I promise I know more about it than you.
Seriously. If you didn't talk about stuff you genuinely had no damn clue on, people wouldn't think you such a dullard. It's the reason I so rarely criticize people's preferences in football players.