The thing I learned from all of this is the earlier the better. No matter if it is when they are born or in high school. We need as a society to get people on board with helping their children. I’m not sure what the best method is, Should we teach parenting in high school, so everybody gets training or should we tie training to services received such has WIC , food stamps, free/reduced lunches etc.. The problem with all of it is we won’t see big change for decades to come. Sure we can make a difference with students we have now, but that’s a slow process as well.
I do also believe that our IQs are not fixed as well. They change as our environments changes.