If you are optimizing for finding geniuses like R, you may be right. Many probably fall through the cracks of the educational system. But I don't think this is what we are or should be optimizing for. The vast majority of people would end up unemployable if they weren't "forced" to study things they don't enjoy because some skills are just more employable than others. You're lucky if you enjoy engineering/science, but not so lucky if you only care about art literature.