For the two of you, the choice was made when Ender was conceived. But for Ender, the choice has not been made at all. Conscripts make good cannon fodder, but for officers we need volunteers.
They look at you and see you as a badge of pride, because they were able to circumvent the law and have a Third. But you’re also a badge of cowardice, because they dare not go further and practice the noncompliance they still feel is right. And you’re a badge of public shame, because at every step you interfere with their efforts at assimilation into normal complying society.
There are worse things than being a Third, worse things than a big brother who can’t make up his mind whether to be a human being or a jackal. Battle School is one of those worse things. But we need you. The buggers may seem like a game to you now, Ender, but they damn near wiped us out last time.