Individualism comes naturally and inevitably out of man. It is the point to which all development tends. It is the differentiation to which all organisms grow. It is the perfection that is inherent in every mode of life, and towards which every mode of life quickens. To ask whether individualism is practical is like asking whether evolution is practical.
Evolution is the law of life, and there is no evolution except towards individualism.
When this tendency is not expressed, it is a case of artificially arrested growth, or of disease, or of death. These observations constitute the only reality. Until we see why the universe is built this way, we have not understood the first thing about it. We can well believe that we will first understand how simple the universe is when we recognize how strange it is. Specialization is for insects.