It's just a plant. Definitely has medicinal properties. Used to be a regular participant during my college years. It didn't slow me down any in my grades. Not so sure it wouldn't now with being older and all.
I often wondered how the conversation would go if it was legal and alcohol was illegal. Then this thread would read, Is alcohol good or bad? It is a matter of societal norms and acceptance.
I don't care to smoke anything, but I wish I lived in a state where it was legal as I would not mind trying it for medical issues. I watched a show on the many edibles provided and the different varieties of marijuana that treat different symptoms, insomnia, pain, nausea, anxiety, depression, seizures, etc.
I know it works quite well for chemo related nausea and wasting syndromes. I saw a lot of patients benefit from Marinol in the hospital and that is just one of the ingredients from the plant, THC. Funny, it is quite legal if the pharmaceutical industry can make a profit off of it, huh?
I have no problem with the recreational use of it either. Anyone who winds down with a glass of alcohol, but demonizes another doing the same thing with marijuana is just plain hypocritical, IMHO. Actually, marijuana is not physically addictive whereas alcohol most certainly can be. I do think one has a problem if they must constantly escape life with any substance, legal or not.