No to legalization of any kind no matter how many left wingers want it. Longitudinal research on marijuana use among young people below college age indicates those who used:
have lower achievement than the non-users,
more acceptance of deviant behavior,
more delinquent behavior and aggression,
greater rebelliousness,
poorer relationships with parents,
and more associations with delinquent and drug-using friends.
And worse.
As for its usefullness as an anelgesic, if science can prove that THC does relieve pain in a way that is superior to other pain meds then I would agree to having available in prescripion pill form.
I can't think of a more definitive "nanny goverment" than to base public policy on an assumption that we are all children.
Does that research demonstrate that those bad outcomes are not simply caused by the same psychological factors that cause marijuana use, rather than being caused by the marijuana use?
And if the same results could be shown for alcohol use, as I think quite likely, would you then support a general ban on alcohol?