The problem is that common sense was outlawed long ago, long before vaping came into existence.
Cloud chasing has killed whatever chance we had of being able to vape indoors in public or at work, but most of us would accept this.
It gets silly, when, in my industry for example, a bus engineer would get disciplined for vaping beside a bus that was emitting diesel fumes 90 million times more toxic than his vapour.
Now that the experts seem to be in agreement that passive vaping is completely harmless (apart from the lowlife scum at the BMA, which is actually just a trade union for doctors and behaves just like any other trade union), we need some test cases because no-one has the right to ban vaping anywhere in the open air, be it a work car park, hospital grounds or station platforms.