Welcome punkiedog! Your DS sounds lovely and a lot like mine (and many here - I hope you'll feel at home here). I think you should let your DS be interested in whatever he is interested in! It's already clear that he's going to be way ahead when he starts school, so you may want to be thinking about your options there, visiting possible schools etc. Our experience in case it helps: when DS started school at 4y10m he was clearly far ahead in reading (reading chapter books), and his teacher took that in her stride. Since there was absolutely no doubt he needed differentiation there, it was easy for him to get it. In maths he was less obviously ahead when he started, but had an enormous spurt a few months in. It took a bit more work on our part to get the school to differentiate there, I think because his abilities in that area hadn't hit them in the face on Day 1 (even though a year later it's obvious that this is where his strengths lie). So my slogan these days would be: if a child is going to need differentiation, it's easier if they *obviously* need differentiation. Of course that doesn't mean that you sit them down and teach them, but I think doing something to depress their level at academic skills artificially might backfire, and I'd just go with the flow.
