Legalized pot doesn't spur teen use, study says Legalized Medical Pot Doesn't Spur Teen Use, Study Finds,Legal medical marijuana hasn't encouraged more kids to smoke, a new study found. ( arguments for legalized medical marijuana | arguments against legalized medical marijuana ). Researchers compared stats on teen pot use in a state with legalized medical marijuana Rhode Island, United States with its neighbor, Massachusetts, that doesn't have legal medical marijuana, and found no increase.Legalizing medical marijuana in Rhode Island did not increase illegal use of the drug among the state's youths, a new study shows. "Our study did not find increases in adolescent marijuana use related to Rhode Island's 2006 legalization of medical marijuana; however, additional research may follow future trends as medical marijuana in Rhode Island and other states becomes more widely used," study researcher Dr. Esther Choo, of Brown University, said in a statement....