Which most people would agree - smoking in public is not a personal activity; but this debate raged on throughout the 90s and early 00s. The secondary effect is on the healthcare system some time after the fact, which is the same for sugar, alcohol, smoking...where it is a new generation that is funding the care.

I don't mean to distract from the main point, but sugar is not an innocent example, especially when lobbying happened to use sugar in favour of fat.