And none of these changes are permanent!
Look at the cultural attitudes towards smoking pot. Often the same cities/governments/people what were fining cigarette smoking out of existence suddenly have a hands-off attitude towards pot.
In NYC its illegal to smoke or drink in parks, but you can walk through a park reeking of pot and see cops writing tickets to the 2 kids who hid their beer too poorly.
Not to nitpick but smelling like pot is not a crime.
I suggest reading about the different effects of smoking typical amounts of tobacco vs cannabis, and comparing the magnitude of the damage, both at the individual and societal level.
I really dislike the smell of cannabis and can count with the fingers of one hand how often I vape it per year, so I am not exactly an advocate, but comparing it with tobacco is silly.