For much of the 20th century, 18 was the standard minimum legal age (MLA) for tobacco sales in many western countries. However, the United States saw a significant policy change on , when federal law raised the purchase age for all tobacco products—including e-cigarettes and vapes—from 18 to 21. This national mandate followed years of local advocacy, starting with Needham, Massachusetts, in 2005.
The minimum age to buy cigarettes has evolved from a patchwork of local regulations into a global public health priority, with many nations shifting the threshold from 18 to 21 or even proposing permanent bans for future generations. This shift, often referred to as "Tobacco 21," is driven by evidence that early nicotine exposure significantly increases the likelihood of lifelong addiction. minimum age to buy cigarettes