answer: #Person2# worries about the children since it's their first time to be out without parents.
documents: #Person1#: Why are you walking to and fro in the room? 
  #Person2#: I'm worrying about the children. After all this is the first time they have been out without us. 
  #Person1#: Don't worry. They are grown-ups. 
  #Person2#: I know. But I couldn't help.