It was the key pledge supporting London’s bid to host the Olympics, made winningly by Lord Coe and the then-prime minister Tony Blair: that a British Games would “inspire a generation” to become more involved in sport. A nation still heady with the glories it has witnessed now expects greater sporting opportunities as a legacy of the Games and their £9.3bn cost, but the Olympic torch has not burned away the stubborn realities dragging people the other way. Modern life for most besides those few full-time athletes is increasingly sedentary; Britain’s sports facilities are old, tired and seriously underfunded, and being further depleted by swingeing government cuts to local authority budgets.