Just had influenza for the last week, that was horrible. Get your flu shots.
I have never got one and I never will. it's a crap shoot on which strains they put in it, and they tend to be wrong. plus it compromises your immune system. everyone I know that gets one ends up sick. no thank you. unless there is a medical reason for doing it I wont.
Dang where do you live? I don't think they can legally force you to get a flu shot, they can suggest it strongly.
I never have either but I have a job now that puts me in contact with a lot of sick people. Also if they have symptoms after they get a vaccine that means there body is actively producing antibodies to fight off the virus, which means it worked.