According to a recent study by researchers at New York University School of Medicine, and the Center for Drug Use, 9% of the responding adults between fifty and sixty-four reported using marijuana. The rate in seniors sixty-five and over was reported to be about 3%. Since the Census Bureau reports there are over 47.8 million adults in the US, this means close to 1.5 million people over sixty-five used marijuana in 2015-2016. Similar data collected between 2005-2006 showed less than 4.5% of responding adults between 50-64 were using marijuana & only 0.4% of seniors reported using marijuana. This data indicates substantial changes in both age groups, as mirrored in the latest Gallop poll on legalization, released October 22, 2018:
Among Americans aged 55 and older, views that marijuana should be legalized now surpass the majority level, with 59% support, up from 50% last year.