In the run-up to the Conservative party conference, Rishi Sunak was promoting himself as a serious politician who wanted workable policies that respect consumer choice. No more war on motorists! No more pie-in-the-sky net zero promises! Here was a practical man in tune with the concerns of ordinary people.

Having teed himself up as a pragmatic, back-to-basics Conservative, it was all the more puzzling when, in his keynote speech, he announced a preposterous anti-smoking gimmick borrowed from Jacinda Ardern that no one was asking for.