In the Uk, CBD is already legal and the benefits are not clinically proven although many MS sufferers and people with anxiety swear by it. This does not detract from the fact that CBD is not an instant commercial hit because so many doctors will disagree and of course so will Big Pharma.
There are lots of eliquid makers here with CBD infused flavors and they are nowhere near as popular as you may think. The only ones that would buy it to vape, are those hoping for an intoxicating effect. Those that really need the product would find greater success eating it in chocolate etc. Move on, CBD is not ECIG's saviour, far from it.