It can make sense if you flesh it out. The headline and two lines the musician said about it are shallow, but there's a grain of truth in there.

I do believe that overuse of marijuana is going to be a negative. Kids under 24 using marijuana is going to be a negative. And both of those are going to increase with legalization.

Neither are as harmful as prohibition, but they're still harmful.

Potheads don't need to be on quite the same level as alcoholism, but it should be closer than it is. If you're not acknowledging the harm of using the legal system to enforce this, his quote makes sense. He may not have stated it well.

I mean, sure, its addictive and unhealthy. But, the people suffering from it are the people that take it in the first place, so, banning personal possession and use is effectively punishing the victims, adding more suffering which may drive some to seek more drugs to get through. And if you instead ban production and distribution, you simply create a perfect niche for organized crime to appear to do those things, which creates worse problems than the drugs themselves. If such drugs dont force those involved with them to hide, at least it is possible to put some regulations on them, and more easily monitor and intervene in their use.

Imagine anyone caring about what this irrelevant old fart thinks

I tend to agree, but not for the typical reason...

I'm a cynic. Legal weed opens the door to a new industry with all the worst aspects of big pharma and big tobacco all rolled up into one.

What could possibly go wrong?