Tobacco has been a favorite crop of the US for a long time, and college students are no exception when expirimenting with new things. For the first time, research is now showing that college students now favor marijuana over tabacco. 5.9% of US students use marijuana almost daily, compared to 5% who smoke cigarettes daily. The past 10 years have shown significant increases in marijuana smokers, but with many states legalizing and public opinion shifting, it's no wonder that smokers are choosing a less harmful drug.
Johnston said the main driver for the increased use of marijuana is the perception that it is not as dangerous as tobacco.
In 2006, 55 percent of 19- to 22-year-old high school graduates said regular use of marijuana was dangerous. That number plummeted to 35 percent in 2014.