When my daughter was 9/10 (she's now 13), she wanted to play a game online called 'Habbo', as it was a 12 I said no because she was to young to play it. Now my son, who is 11, wants to play a 15 rated game on the x-box. After re-searching it online and looking at the reviews or it, i'm going to let him play the game. Is this being unfair towards my daughter? If so what should I do about it? 