Sorry, you're right--I don't mean BLAME the child. But...you know what I mean. If a 5yo gifted boy is motor-excitable and doesn't want to sit down and do alphabet worksheets in K, is it because there is something wrong with him, or something is wrong with that environment? Sometimes the answer is gray, but sometimes not so much.

And no, I don't think we should accept the full range of human variation as normal. But I do think it can be hard to decide where the cutoffs are.