Well everyone is certainly entitled to disagree.
And it all depends on whether the use of the child was intentional or not. It it was intentional then Yes, it is exploitation. And I would rather never have an upgrade then to exploit any child.
The definition on the National Website for Exploitated Children reads: Exploitation: The use of a child for monetary, personal benefit, profit, or gain.
If you are intentionally using your child for gain, then you are exploiting them, regardless of how you wish to see it.
There is a huge difference in the Magic just happening for someone and trying to make it happen.