Places of work often offer it, as it can *possibly* reduce the number of sick days employees take due to the flu. Forking out the cost of the injections would probably cost the company less in employee sick days.
I got the vaccine last year, and wasn't sick due to any cold or flu related illness... Was offered it again this year in work, and I more than willingly took it up. It's only 'recommended' to young and old... but anyone is entitled to get it. There's no martyrdom in declining the injection… but there is definitely a benefit in receiving it.
-soc