I had a serious flu 3 times that I remember. Fever for a few days and hurting all over. This is goes away if I drink plenty of fluids and get rest.

I might change my mind when I get older but right now I don't mind this.

Also I don't understand the negative comments. I don't reject vaccines in general. I just don't think that flu vaccination is required for me. Yes, I know that flu might kill me one day, but so can so much else.