When it boils right down to it, probably not much as death has the potential of being the final result.
Statistically, tobacco kills half of those who use it as directed.
The other half probably just due too soon or quit in time.
Imo, recreational use of marijuana is at least as filthy, disgusting, and stupid as smoking tobacco. Don't ever expect me to say anything positive about it.
With that said, good luck with the legalization. I hope you enjoy paying more taxes.
And they should pay more taxes, smoke in the shop or at home, and keep it out of my sight or face a fine. And keep any shop that sells it out of sight too.
Anyone who really wants to buy it will find the shop, don't worry about that.