When did they stop selling packs of five?

The sale of packs of five cigarettes was largely phased out in many regions due to regulatory changes and efforts to discourage smoking. In the United States, for example, this trend gained momentum in the early 2000s, with many states implementing laws to limit cigarette packaging options. By 2016, the FDA also proposed regulations that aimed to restrict certain packaging sizes. However, specific timelines can vary by country and local regulations.