That's the problem, the whole world has to have the foundations and be ready to change all at once, so we can move into these self sufficient cities without the need to 9-5 jobs, just centres for learning and centres for recreation inside them, obviously with access to the rest of the outside world too, but it makes you think that if you were having a such a good life without money living in one of these cities then why the need to contact the outside world other than for family contact or to contact other similar cities and stuff.
It wont happen all at once though, so will need willing workers to do the hard shit whilst others are already living their utopian bliss, which is also going to cause a lot of stress and hard feelings and could end up in civil wars, it's a hard problem to tackle, and I don't think anyone has the answer.