MOL,
"Smoking" or "Taking a 'swig' from a Can" IS ILLEGAL
You don't like it, then GO BY BOAT
IF You travel by Air, [or Coach, or Ferry or Eurostar] then you abide by "certain" rules....AKA "Common Sense" or "Conforming to the Social 'Norm'".
Most "civilised" sections of our "Society" have NOT a problem with this. BUT If you have a "problem" with this, the I suggest that you STAY AT HOME
we aim to please, it keeps the cleaners happy