Beyond the usual memorable factors — fears about the millennium bug, the dawn of the 21st century — January 1, 2000, is a significant date for residents of Brookline, Massachusetts. In the town on the outskirts of Boston, vendors are legally banned from selling tobacco products and e-cigarettes to anyone born after Y2K. The legislation came into effect in September last year, after a vote in November 2020, making Brookline the first US town to implement such a law, in the hopes of gradually phasing out smoking for younger generations. It is not clear how effective the policy in Brookline might be,