We stopped doing circling approaches for a few reasons, but basically because we only fly widebodies and there is only one airport in our network where we might have had to do a circling approach and even then it was only a remote possibility. Nobody had done a circling approach in anger in living memory, and the only way to stay 'current' was in the simulator, which doesn't provide great fidelity for the late downwind/base turn bit. Management decided there was too much risk and that the simulator time could be better spent on other training, so our approval for circling approaches was taken away.