Because one person's allergic reaction counters the untold millions of lives the vaccine saves.
You know influenza used to be, in a time before vaccines, a really big deal that was quite dangerous and killed a LOT of people every winter. Nowadays dying of influenza pretty much only happens if your system is already extremely weak due to something else like AIDs or Cancer or somesuch.
Yes, there is a small chance you may have a bad reaction to a vaccine, and an even smaller (and I mean vanishingly small) chance someone may even die. But there is a 100% chance that influenza used to be a deadly illness that killed millions, and now its a seasonal inconvenience for most people, and we have vaccines to thank for that.
@jimithyashford, back in the middle ages, the living conditions were filthy and unsanitary. People living in poverty, malnutrition, filth, were prone to the simplest of diseases, not just the flu. Vaccines did save lives and eradicate diseases completely, like poliomyelitis. But when vaccination was discovered two centuries ago, there was no such thing as Tween, Triton, EDTA and the shitload of chemicals/detergents/preservatives that are being pumped into modern vaccines. Would you eat soap or dishwasher detergent? If not, why should you accept to be injected with it? Those substances are all toxic and they have no reason to be used. And as I mentioned in one of my comments, the flu vaccine is only efficient to around 60% and people still die despite being vaccinated. If the virus was stable and non-mutating, then by all means, vaccinate, but in the case of the flu, the virus is constantly adapting and mutating. Why do you think there has never been a vaccine for HIV yet (and never will be)? Mutation, mutation, mutation. Today's flu vaccine was created for a 6-8 months old virus, so it's already obsolete, inefficient and irrelevant.
https://steemit.com/vaccines/@canadian-coconut/polio-like-illness-afm-causing-paralysis-and-death-in-children-and-the-vaccine-connection