Is one more acceptable than the other? I heard of stories where two kids are playing on a reserve, they go to the same school, share the same culture, both kno

Is one more acceptable than the other? I heard of stories where two kids are playing on a reserve, they go to the same school, share the same culture, both know the same amount of words from their ancestral language etc... But when they turn 18 the one which is 40% native will have to leave the reserve, will suffer from racism inherent to "being native", and will have no special advantage while the other who is 60% native will be considered native and able to stay on the reserve.