Both mu boys, now 6 and 4, has never really asked questions like that either. My older would just figure things out on his own and not really discuss it. My younger would also figure things out and then give me and explanation why, in his mind, things work the way they do.

It is not until the past week or so DS4 started asking a million questions. I am not sure what happened but as an example; the other day he was "stuck" on a pair of soccer shoes (He had never seen a pair before) asking probably 20 questions about the shoes??? Everything from why are the seams this way, asking it the logo sign was "a mirror, because it kind of reflects"....

Very interesting but....sigh...