Have you all thought of who you all will follow if one day your parents decided to get a divorce?
or
Have you all thought of what will happen to the other parent if you decided to follow one of them?
or
Have you all thought of giving up on following the parent you are closer to just because you don't want the other parent to feel lonely and not taken care of?
or
Have you all thought of how life will be like then?
or
Have you all thought of whether that will have an impact on your personality?