Theres a reason drugs are illigal, because they are bad , addicting, and most importantly, can affect peoples lives.
Have you ever been walking down a street or under a bridge and noticed a homeless person? Most of the time, those people were the potheads, and the other usually drug addicts.
People will try to flame this comment because they think it's "Not True". Well it is, defending the use of pot is a usual sign of being addicted.