I think this is absolutely adorable. I'm sure it is annoying, but WOW! what an imagination!
DD is 7.5 years old and she's is gradually letting go of her imaginary friends. She had two, Ana and Hayla, they also had extensive backgrounds. In the last six months she hasn't visited with them as much, so there is hope!
I had an invisible friend named Chuck until I was about 6 or 7. I am not a billionaire, nor did I live for any extended period at my parents'!

Nicholas will eventually let them go. I'm guessing that he needs them, for whatever reason.
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