the only reason that it is illegal is because it would be impossible to tax, because you can grow it yourself.
and...
the only reason that marijuana nowadays has more THCs (making it more "dangerous") is because it cannot be grown in fields, and has to be hidden and grown in doors, where it is cultivated and grown to be stronger. im no scientist, so don't take my word for it, look it up on wikipedia.
marijuana is impossible to overdose on. it is far less addicting and less dangerous than tobacco and alcohol.
marijuana makes you appreciate life. it also brings people together. i think if some of our world leaders smoked some weed every once and a while, there'd be less wars, and it would get some of their priorities straightened out. life's not about competition.
(wow that post had no structure at all, it was just my random thoughts, haha)