It is the most defended drug of them all, and yet probably by far the worst of them all.
If you shoot up heroin it will fuck you up quite fast, fast enough that you maybe have a fairly good chance to get clean of it, but weed takes ages to get to you. By the time you realize it is hurting you, it’s too late, smoking it is now a key part of your personality.
Weed will alter your personality, like it or not, you wont be the same person after a few years of weed use as you would have been without it. Weed will give you “proof” time and time again that there is nothing wrong with weed, because last time it was all good fun, but this is a false confirmation.
I smoked the stuff for over a decade until I finally quit, and you know what… smoking a joint is fine, so is two, or three, or even a years worth. However smoke that stuff day in and day out for a decade, and you can kiss your short term memory goodbye, and say hello to poor physical endurance, a lazy mentality, and possible sever mental problems.
Weed also stunts your psychological development, if you start smoking it age 15, at age 20 you will still act very much like a 15 year old.
It will benefit you guaranteed by expanding your sense of humor, and it could potentially benefit you by opening your mind to new ideas, but by and large, it is bad for you.
However, all drugs should be legal. No one should have the right to tell you what you can and can’t do with your own body.