Strikes me that the Knowledge isn't just a memory test of London streets. The two or three years it takes to complete is a character test as much as anything else and demonstrates commitment to a career, whereas minicab-driving (driver-partnering, I believe, in slightly Orwellian ?berspeak) is of a more transient nature and probably appeals to those whose employment opportunities are limited. Nothing wrong with that, of course, but if the barriers between licensed taxis and private hire continue to be eroded (Uber have effectively been allowed to 'ply for hire', albeit electronically) then the race to the bottom will have been won. If the Knowledge is sacrificed on the altar of de-regulation and cheapness is the only criteria (we'd better get used to that post-Brexit) then I, for one, think that'll be a sad day. Be careful what you wish for.