Tenten is her parents' pride and joy. Their youngest child, their only daughter. And what an amazing child, wouldn't you agree? Just look at her accomplishments.
Able to speak the language of the Fire Country as fluently as her native tongue. To hit ten out of ten bulls-eye on a dartboard.
Able to use chakra. To become a ninja.
Able to forget a culture she once called her own. To forget the enslavement that killed her brothers and ruined her sisters. To forget a language she once knew by heart.
The day she can no longer speak to them will be their happiest.