if you are over the age of 4, under the age of 60, and do not have a compromised immune system from AIDS or any other autoimmune disease, AND you do not work with people who DO fall into one of those categories, there is no need to get a flu shot. your immune system should be more than strong enough to fight it off on its own. yes, you will probably get sick, but you wont die. i get the flu once every 3-5 years. and i get maybe a tiny start of a cold every year in the winter, but that's it.
also, i use cash for everything and only use my debit card to buy things online. or i use money orders for rent and bills and stuff.