I found this column online at The Guardian about specialists vs. non-specialists. It hit home for me given the themes in Untalented, and how I have personally experienced the pressure to specialize.
I particularly liked the point that not everyone is suited to specialization, and how freeing it is if you are a generalist to just accept that and find ways to be productive and contribute when surrounded by specialists.
If you've got a kid you suspect is a generalist, let them know it's OK to not try to fit in a single rigid box. There's untold value in exploration and the interconnection of ideas and skills.