It's not legal in my jurisdiction but it has been decriminalised for many years. Unfortunately the fact of decriminlisation is a bit of a political football and the amount allowed before it becomes a criminal offence (personal use only) and the number of plants allowed to be grown for personal use before it becomes a criminal offence changes with changes in government. But it's still decriminalised at the personal use level. And our world has not collapsed.
Users/possessors/personal growers get an infringement notice for a small monetary amount (they can still contest it in court if they wish). First time "offenders" are cautioned and sent to an educational programme. Users who are pinched several times may be sent on a rehab programme.
Drug dealers get the can [bwhatever it is they're dealing[/b]. They only got get shot if they shoot first.