I support the full legalization of marijuana, both medical and recreational. I also support an age limit of at least 21 for purchase for recreational. Why? Science. Science has shown us marijuana is not the demon gateway drug the reefer madness crowd portrays it to be. Quite the contrary. The documented benefits are astounding. But science also tells us young adults’ brains are not fully developed until their mid-20s. There are almost assuredly medical reasons that outweigh the limited risk for earlier use (as any medicine may have more benefits than risk) but as far as recreational use goes I support at least 21. And yes, state’s rights folks should be up in arms. I always find it interesting and telling when politicians choose to play the states’ rights card and when they choose to keep it tucked away.