Wedgewing,
I find it great that you fly with your son. I am trying to interest my daughter in RC planes with limited results so far. She is 9 yrs old, but I suspect that she prefer spending time with Dad rather than flying airplanes. But I am pleased when she come to the field with me. She is training with a Hobby Zone firebird freedom, wich is not ideal but Ok. I launch it and bring it to altitude, and she circles it for about 5 minutes.
The anti-crash technology secures her, but so far Dad managed to crash it a couple of times ( I had borrowed it )