This is really fascinating.I believe most of you have experienced this too.My mum (main care-taker)has always been communicating with my boy in adult language.She doesn't believe in using baby language like "pom pom","shi shi","mum mum" etc.
Just spoke over the phone with my boy and he actually surprised me,it's like he has changed to a new person all of a sudden.Our mandarin conversation goes like this:
JX:Are you alone at home?
Me:Yes.
JX:Are you afraid when you are alone at home?
Me:No,why did you ask? Who told you to ask this question??
JX: ......
Me:Would you be afraid if you are alone at home?
JX: Yes.
Me: Why?
JX: Because I have no one to talk to.
Me: (nearly fainted......)