This isn't complicated: marijuana is addictive to some people, but making it illegal doesn't solve that problem--it should be legal. But it's apparent that's too much nuance for the average politician.
I'll add that I've also experienced this with caffeine: I've got more than one health reason to quit (heart arrhythmia, anxiety, insomnia), but I had a hell of a time quitting, with multiple failed attempts (now a few months out and hoping it sticks this time). And when I talk about it to the people around me, I get shocked and even defensive reactions. But my life is so much better when I'm not drinking coffee. Which is not to say that's the best decision for everyone.
I'll add that I've also experienced this with caffeine: I've got more than one health reason to quit (heart arrhythmia, anxiety, insomnia), but I had a hell of a time quitting, with multiple failed attempts (now a few months out and hoping it sticks this time). And when I talk about it to the people around me, I get shocked and even defensive reactions. But my life is so much better when I'm not drinking coffee. Which is not to say that's the best decision for everyone.