I think it is great that your nephew is involved in theses things. Before you said it, I was thinking about all the young folks that are stuck in the electronics now instead of moving around and experiencing making real people friends and learning to work as a group.
I think more folks will be physically old before their time with the lack of real childhood play. I'd like to be wrong about that,
They say, sitting is the new smoking, and I agree. So many kids (adults too) are not active. Not a good thing.