The United States is in the midst of a widespread flu epidemic. Every year, thousands die from the flu and flu-related complications, not to mention the millions of hours of lost productivity resulting from those who are ill from the flu.
Having lived through the Flu Pandemic of 1968-1969 (it knocked me out of school for two weeks and took many more weeks for me to fully recover; around 34,000 died in the US), I cannot understand why anyone would not get vaccinated against the flu. Yes, it is not foolproof, but the probability is much higher that you will be able to avoid the flu if you are vaccinated than if you are not.
Last year, the CDC Report stated that “90 percent of children who died from flu this season  [were] not vaccinated.” The CDC reported that , as of January 18, 2014, 20 children had died of the flu, at least two of whom had not been vaccinated. It is probable that the other children were not vaccinated, but that the parents were reluctant to admit that.
Perhaps many of those who do not get vaccinated are relying (consciously or not) on herd/community immunity: they hope that enough other people get vaccinated to reduce flu transmission so that they won’t get the flu. However, herd/community immunity only works if most of the population is vaccinated. Freeloading may get you ill or dead. Freeloading may also mean that you cause illness (or even death) in individuals who cannot be vaccinated due to underlying health issues. I suggest you view getting vaccinated as something you can do to help your community. Vaccination saves lives. You will be a quiet hero.