What makes marijuana users different from everyone else

Usage patterns are similar to what's seen among tobacco users
The Washington Post (US)
Sunday, August 14, 2016

A massive study published this month in the Journal of Drug Issues found that the proportion of marijuana users who smoke daily has rapidly grown, and that many of those frequent users are poor and lack a high-school diploma. "Most people who have used marijuana in the past year are in full control of their use, and are generally happy with that use," researcher Jonathan Caulkins said . But, "consumption is highly concentrated among the smaller number of daily & near-daily users, and they tend to be less educated, less affluent, and less in control of their use."