[bsaunder]

As others have mentioned, I think requiring education would be a bit of fighting reality (with eventual automation outperforming humans in many tasks). I think, as in the current world, some people will naturally choose to produce and contribute while others will not. Largely this is okay... (open source software, wikipedia, school PTA groups, hacker news, ...). Encouraging people to contribute to society seems like an undebatable good thing, requiring them to do so, not so much.