Is weed bad?

• Kills brain cells
  
• Your smoking, hurts lungs and etcs
  
• Probably won't live as long as someone who never smoked anything.
  
• Addictive (People say, "I could quit anytime", please note that this is an classic line)
  

• Source on brain cell death? I've been told smelling gasoline does that too. No laws against that.
  
• Source on life expectancy cut? Getting a Job has the same effect - it can be noticed in the increase of women with heart problems in correlation to an increase in women presence in the work force.
  
• Coffee is more addictive. No laws against coffee consumption.