In exchange for smoking.
As in, not quitting ingesting nicotine. Still inhaling foreign substances into the lungs. Vaping is still shit for you.
In the early 2000s the message was "smoking is bad, here is why, this is what it will do to you, please don't do it". That message was sinking in to the general public. Smoking was plummeting.
Then austerity came along around the same time as vaping and it became far more convenient to just ask smokers to vape instead of mass education campaigns.
Now the simple answer is just banning it.
It's not a solution. It normalises government overreach into day to day life, it others people and makes them targets for discrimination, and doesn't convince people of the ills of smoking.
It's a dumb idea that polarises people and doesn't fix the root issue.
Who's not arguing in good faith now?