Is she 4 or 14?

ME: I want to talk to you about the way you've been treating Charlie when your friends are around. Now, I know it can be frustrating to have your little brother with you all the time, but I think you're really hurting his feelings.
LUA: No I'm not.
ME: Well, let's put it this way. How would you feel if Charlie and Emily ran downstairs, shut the door in your face, and told you that you couldn't be part of their band?
LUA: I would feel fine.
ME: Lua. Come on.
LUA: What? It would be fine! I would be happy.
ME: I don't think you would be happy.
LUA: Mom, okay. I'll try. Now let's not have this conversation any more.