I think it would be useful for tailoring education to interests and capabilities. In my country and state all children have some sort capabilities test, so I t

I think it would be useful for tailoring education to interests and capabilities. In my country and state all children have some sort capabilities test, so I think the test says nothing much about the parents other than they participated in some system level testing and didn’t protest or remove their child from the test. There’s lots of study showing correlation of IQ with income [0] and other positive life outcomes. But I think it’s generally not a good idea to tell six year olds all this. In my own experience, the standardized tests included guidance about how not to reveal the information to children and why that wasn’t helpful. A few years later one of my children had a psychological evaluation that included IQ and it also included language about not revealing scores to the subject. [0] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6526425/ https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6526425/