Unclear On The Concept

Sometimes my children do not understand what truly is and is not the role of a mother, and I have to take it upon myself to clarify.  Here are some actual sentences that I have said:

I am not a garbage can.  

I am not a water fountain.  

I am not a jungle gym.  

I am not your personal assistant.  

I am not a Kleenex.  

I am not your social secretary.  

I am not an ATM.  

I am not a math teacher.

I am not a laundromat.

I am not your personal chef.

Maybe someday they'll get it, but I'm not keeping my fingers crossed.