Experience with marijuana — either in the form of personal use or knowing someone who has used marijuana — is associated with increased support for marijuana legalization. The overwhelming majority (83%) of Americans who say they currently use marijuana recreationally or have used it in the past somewhat or strongly support making the use of marijuana legal. Only 11% oppose it. Legalization also receives majority support (53%) from Americans who say they haven't personally used marijuana recreationally but know someone who has, while 40% of this group oppose it — which makes this group less supportive than Americans overall. Experience with medical marijuana is even more positively associated with support for legalization. Almost all Americans who say they have personally used marijuana for medical purposes support making marijuana use legal (90% vs. 8% who oppose it). Most Americans who say they know someone who has used medical marijuana also support legalization (65% vs. 26% who oppose it). In contrast, Americans who say they have never used marijuana either recreationally or medically and don't know anyone who has are more likely to oppose legalization than to support it (46% vs. 32%). About one in six Americans (17%) say they have not used marijuana and don't know anyone who has.
Americans who have personal experience with marijuana are more likely to say that it makes life better for people who use it. About one-quarter (27%) of Americans say that recreational marijuana generally makes life somewhat or much better for people who use it, while 31% say it makes users' lives worse. But half (49%) of Americans who say they have used recreational marijuana say it makes people's lives better, compared to only 13% who say it makes life worse. And while most Americans (69%) say medical marijuana makes users' lives better, almost all Americans who have used it (94%) say this. That suggests that most people who say they have used marijuana have had positive experiences, but it doesn't necessarily mean that if everyone tried marijuana, they would view it more favorably. It's possible that beliefs about marijuana determine who uses it, rather than experiences with marijuana shaping beliefs. In other words, people who believe marijuana has positive effects may be more willing to try it than those who have concerns about negative effects. For those who don't have personal experience, knowing someone who has used medical marijuana also increases the likelihood of saying it makes users' lives better: 85% of Americans who know a current or past medical marijuana user say it makes people's lives better, compared to only 50% of Americans who don't know anyone who has used it. This effect is much weaker for recreational marijuana: 15% of Americans who know someone who has used recreational marijuana say it makes users' lives better, compared to 7% of Americans who don't know anyone who has used it. Both groups are much more likely to say it makes users' lives worse (46% and 45%, respectively).
Knowing someone who's used marijuana or using it oneself is associated with more support for legalization. This may be because people who have experience with marijuana are more likely to say it makes people's lives better – especially in the case of medical marijuana.
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