Crime is always ahead of rules and regulations. Is a natural cause and effect of how the real world works. As long as long we identified the trend, and act on to hard, that is the first right direction.
If you take a look at those western countries. Government don't even talk about it, and many of these government either turn a bilnd eye, or too thinly spread of limited resources.
Remeber the chewing gum ruling. This vaping thingly will be the same. But vaping is more difficult, because addiction is diffciult to tackle. Need time.