An ageing workforce is affecting all sorts of professions, says Leo Lewis for Financial Times. TOKYO: Tinker, tailor, soldier, sailor, pharmacist, tax accountant, bus driver, chef. Name the profession, and Japan is likely to be running perilously low on its practitioners – not just to the point of inconvenience, but to somewhere a little more existential. So while there is much to welcome in the ruling Liberal Democratic Party’s election of Sanae Takaichi as both its new leader and (we may