My perception on smokers is that they represent one of humanity's worst qualities: groupthink/thinking socially/following peers instead of thinking rationally. This is the root of a large percentage of the world's problems. Smokers represent this mentality because it makes no sense whatsoever to start smoking when it's obvious that everyone who smokes gets addicted to it for life and it's a huge money drain and horrible for your health, yet people smoke anyway just because they see everyone else doing it.