I don't have any children so my opinon is not as weighty as those who do, but I would like to have children one day and am trying to think as a parent and MJ advocate.

I would like to see an age limit on MJ if it is decriminalized. 21 is good. Maybe have a permit to smoke MJ and the requirements are a fee to the state and educational classes on drug abuse.
I don't want to see my kids smoking ciggerettes either but that is legal, deadlier more addictive and easier to get ahold of than any other drug.