Who knows what technology will emerge in the next five years let alone 20. Yet the education we provide our children now is supposed to last for decades. We cannot train them for jobs that do not even exist yet but we can provide them with the minds and tools they'll need to adapt to our ever-changing set of circumstances.
I have no problem with the people who work hard to get success. But I think people are very jealous about success. I work very hard and they don't appreciate that.