Marijuana has been around for 4000 years mass murdering people is a in the frequency we’ve see is a relatively new phenomenon
The marijuana today is a different substance, it has been GMO’d to be much, much stronger than anything that grows naturally.
Its the mixing of Psychiatric drugs and Alcohol or marijuana that is far to common.
Marijuana with a THC content of over 25% has only been aroud a decade or two at most.
Normal, non genetically modified marijuana and/or hemp had a THC content of between 0 and 4% 60 years ago. Genetic cross breeding to increase THC content has been going on for decades and has resulted in strains of marijuana that are significantly more potent than what was around 50 years ago.
That fact is undeniable. You may as well compare apples and oranges. Current marijuana bares little resemblance to the past and no-one knows what the consequences will be.
Studies using strains of marijuana from 30-40 years ago by adolescent children whose brains have not fully developed have shown significant disruptions to proper synaptic/mental development for any mind altering substances including alcohol and pot and others.
I would not recommend any mind altering substance including SRI psych meds/drugs before the age of 25. After 25 years of age your brain has pretty much wired itself up fully. Altering the wiring while its being put together is playing Russian roulette with your mental health as far as I’m concerned.
I speak from experience. I’ve got to many friends who are Bat Guano crazy and they all share one thing in common - adolescent drug use.