On Tuesday, parliament voted for the first time on legislation to begin the phasing out of smoking (not just cigarettes, but cigars, shisha, you name it), and to create a two-tier legal system where some adults will be able to buy these products, and some won’t. Although the ban seems popular with the public, it has become a lightning rod for Tory MPs, who see it as a shibboleth for how conservative they and their colleagues are.