Hawaii has become the first state to raise the smoking age to 21.
The new law — which went into effect Jan. 1 — bans those under 21 from buying tobacco products, including electronic cigarettes.
Most smokers start smoking before age 21, and about half become daily smokers before 18, the Hawaii State Department of Health said in apress release.
While smoking has decreased greatly in Hawaii, use of e-cigarettes is on the rise. 22% of high school students have tried e-cigarettes, compared with only 5% in 2011, according to the same release.
The act is an effort to reverse this trend by making e-cigarettes less accessible and less attractive, said Lola Irvin, Administrator for the Chronic Disease Prevention and Health Promotion Division.