Generation z is different. As a whole, Americans born between the late 1990s and early 2000s are less likely to have work or look for it: their labour-force-participation rate is 71%, compared with 75% for millennials (born between 1980 and the late 1990s) and 78% for Generation x (born in the decade or so to 1980) when each came of age. As a result, they make up a smaller share of the workforce. On the other hand, they are better educated:…