S.H.
Does this 14 year old... know CPR and First Aid???
Does she know, the developmental phases of a 4 year old?
Does she know how to cook and feed and supervise a 4 year old???
Does she know, about safety for a child? What is a choking hazard or not?
Does she know, how to keep the home safe and not go through other's belongings?
etc., etc., etc.,