How many societies have legalized marijuana?
I don’t think it has much to do with wanting to help or protect anyone, or else you would see more consistency in the things people want to make illegal. It’s more akin to religious people who think they know the “right” way to live and want to impose those values on everyone.
Many people just have an emotional dislike of cannabis for whatever reason—seeing its effect on others makes them uncomfortable, so they want to stop everyone from doing it. Soda and motorcycles don’t make them uncomfortable, so they don’t care about those.
Unlike alcohol addiction, which can come on fast, weed grabs a hold of you over a longer period. It starts out as only beneficial with little to no downside. You won't notice you're addicted until much later.
Also, I find your decision to call the plant marijuana interesting. The names weed and pot have a negative connotation. But "marijuana" sounds a lot more acceptable. Nothing to do with you. Just something I noticed.
https://www.theguardian.com/society/2018/jan/29/marijuana-na...
You speak as if marijuana is highly addictive when in fact it is less addictive than coffee and easier to quit.
This is highly fascinating, and opens the door towards in nuanced manipulation of marijuana plant genetics in order to create strains with the benefits, but without the addictive side effects and tailoring that genetic strain manipulation to the genetics of the individual user where they could undergo a kind of a genetic test, and then the strain could be tailored to meet their exact desired profile without any addictive qualities.