As recreational marijuana shops increase across the country, many health officials have growing concerns over the packaging and marketing of flavored cannabis that could appeal to people under 21. Marijuana use may harm the developing teenage brain, according to the CDC. It may lead to difficulty thinking and reduced coordination. The CDC says 22% of U.S. high school students in 2019 reported using marijuana in the last 30 days. New York, which legalized recreational marijuana in March 2021, forbids marketing and advertising that "is designed in any way to appeal to children or other minors." But the state has yet to officially adopt rules on advertising that could ban cartoons, candy depictions and other marketing, which the New York State Office of Cannabis Management suggests could attract people under 21. Many strains of cannabis had catchy names long before marijuana was legal. Medical use of cannabis is currently allowed in 37 U.S. states, while 21 states allow recreational use. Local lawmakers often look to the federal government to set national standards, an option not possible for cannabis marketing because marijuana remains illegal at the federal level.