[mac_truck]

Fifty years ago I never experienced cannabis-induced psychosis and I never even heard of anybody that experienced cannabis-induced psychosis.

Cannabis potency has greatly increased since then, and so has availability. What your looking at today is a much more potent substance and a much wider audience of users.

Average THC Strength Over Time: A 50-Year Look at Marijuana Potency

[higgmeister]

My comment stands.   Those that are strung out were self medicating an already existing condition or didn't stop with the weed.   That is why it was always called a "gateway drug", but you would know that if you had any experience at all.   Your effort to push an agenda is apparent.