Faulty logic. First marijuana isn't that 'harmful', it has no long term effects under every study I've seen and it is impossible to OD on. Secondly and more importantly, you will not be 'introducing' it. It's already everywhere, in your kids schools, in the halls of congress, in maximum security prisons and everywhere on the streets. The only difference is one way you shell out around 20 billion a year to not deter use, and the other way you could probably make 20-30 billion a year in taxes.
...in HIGH TIMES? Haha! Just kidding you unit rb22982. Seriously, this is debatable. There is no firm consensus yet. My hunch is that any leafy product smoked and inhaled through the lungs will eventually cause damage. Tobacco is a good starting point for research.
...and it is impossible to OD on.
This is an achievement? "You may fry your brains out, but take courage! You WON'T DIE!" Really, that's a silly and tired defense of pot which sidesteps the downside of being one of the living dead potheads. (hehe)
As for "introducing it" I didn't mean to imply it wasn't already making itself comfortable on the couch, kicking its legs up on the coffee table. I meant giving it status as an accepted, legal substance. In effect saying, "Could I get you a beer or make you a bowl of popcorn or get a pillow for your feet?"