I believe flexibility is the main achievement they are hoping for.    So yes quit and 'retire'  for 3 years, maybe to have children or travel the world or both.  The main objective seems to be to work then actually live a proper life outside of the big city smoke and be a normal family of some kind not caught in the rat trap that is modern working often for many.

Its one of the most sensible ideas modern generations have come up with.  The rejection of conspicious consumption is something to be lauded as we waste so much and value little in modern economies, its great to see people finding ways to learn skills to avoid waste and paying others for this saving drive etc.    Commuting both time and money to me is such a waste of humanity, every step away from that traffic jam pollution failure of a business model is an advance for all of humanity imo.