[headcanon]

I remember learning how to use Excel when I was around that age, for the purpose of making charts for science projects. Since they're probably learning basic statistics and data analysis around that age, Excel is an effective way of figuring those things out, with tools they will likely have at home. With that said, I would prefer stuff like that be taught in the context of a larger project (like I did with the science fair project), rather than an end in and of itself. I also agree with the OP in that they should also be learning creative stuff as well during their computer lab time.