By 2024, In Hawaii, you may be too young to smoke! That's correct. According to a proposed piece of legislation, the legal smoking age, by the year, 2024 will be 100 years of age. Not 100 yet, then no ciagarettes for you. Read about this here. Ryan Prior, CNN, February 4, 2019: Hawaii Is Considering A Bill That Bans Cigarette Sales To Anyone Under 100.