My brother smoked heavily during his teens and as a result developed schizophrenia / substance induced psychosis. It was generally terrifying to see him unable to complete thoughts and lose his train of thought. He's fine now but I definitely wouldn't be surprised if you told me those years knocked a couple of points off his IQ. I'm for decriminalization and legalization but at the core we need funding for long term…
It totally weirds me out how defensive people are about your anecdote here. Talking to any clinical psychotherapist dealing with young adults, you will hear lots of stories about weed-induced psychosis and anxiety. What I wonder is why it matters to people that it's not as safe as they may believe? Cognitive dissonance? We do lots of unsafe things.
Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4988731/
With that said, I think it should be legal. I just think people shouldn’t downplay the risks.