Of course not every user of canabis is going to go on to harder drugs, just as all those who drink alcohol don't all become alcoholics.
What I do know is that every smack head I've known started off on the wacky-backy. Fact.
Personally I think it should be legalised, because like prostitution, legal or illegal, it isn't going to go away, and with a legal status it's safety could be controlled to some extent...plus the government could raise lots of taxes from all those dope users.
