In addition to a possible nicotine addiction, there are also vape liquids which contain Tetrahydrocannabinol (THC) which is ultra-concentrated marijuana that has been extracted from the buds and processed into vape liquid (juice) which can be inhaled
Res Gate (2009)

if employees age is between 17 and 21, he or she may only sell e-cigarettes in presence of supervisor at least 21 years old.9 Self-service displays of tobacco products are prohibited except for sale of tobacco products in multi-unit packages of 10 or more units, in tobacco specialty stores or in locations inaccessible to persons under age 21.9 Vending machine sales of tobacco products are restricted to locations inaccessible to persons under age 21.9 Possession or use of tobacco products (including electronic cigarettes) is prohibited by prisoners at Department of Corrections facilities.9 Quitting statistics and benefits Quitting vaping and smoking in Maine The CDC estimates 54.0% of daily adult smokers in Maine quit smoking for one or more days in 2098.3 In 2014, the Affordable Care Act required that Medicaid programs cover all quit medications.7** Maines state quit line invests $28.76 per smoker, compared with the national average investment per smoker of $2.28.7 Maine has no private insurance mandate provision for quitting tobacco.7 Notes and references Updated August 2021 *National and state-level prevalence numbers reflect the most recent data available

In addition, state leaders report 47 other fatalities across 19 counties
Their lineup includes spit-free, sugar-free nicotine pouches, lozenges, tablets, and gums, available in different strengths and flavors to fit various preferences