The document contains responses from a child, their father, and their mother to questions about mobile phone and app usage. The child uses their mobile phone frequently and prefers it over a camera due to its portability. They enjoy English pop music. The father also uses his phone often and likes heavy metal music. He does not accept followers on apps from unknown people. The mother uses her phone regularly but does not let strangers follow her on apps either. She enjoys rock and pop music and prefers using a camera to her phone for photos.