Vaping still brings a hit substance into your lungs and can still cause lung cancer.
It can be taken in so many ways; edible, "oil" that can be put on food, in the mouth, or rubbed into the skin (that doesn't go into the blood stream), a salve... Smoking/vaping wouldn't be my first choice.

I had tried some, it is legal here. It has helped with the pain, but not with depression or moods. I have found it to cause rebound anxiety for me and also rebound pain. So I only use it as a last ditch effort. For me, I have found it to re-create a PTSD flashback. I also am extremely intolerant so ODs are far too easy for me and terribly upsetting.