The more a child associates negative emotions with learning, the more his brain will shut down. He will be immersed completely in his emotions which are urging him to avoid the danger he is in. I have seen children who get to this stage in their life check out, and of course, learning does not happen.
If we don't help children find their strengths, they might take a lifetime to find them. They might spend a whole lot of energy doing things that are not fulfilling to them, changing jobs, feeling inadequate, not trying things that are in their wheelhouse, or not reaching their true potential.