C.C.
Maybe...just maybe he is taking this a bit too far....he needs to be I guess what you would say is " well rounded"...meaning having more than one interest. This can evolve into isolation. Not good by any means....and in my opinion...by 4yo...he should be into other things. My grandson is 9....he knows all electronics inside and out to include iphone...ipad...cameras....computers...also chess...basketball...soccer...and his dog...what do you think??? Agree or not?