M A R K E T I N G
Specifically, marketing by regulatory capture and government "reach."
Haven't had a jab since the Army days, now more than fifty years ago. Still healthy and fit, though sometimes 'fit to be tied.'
I was in the Army when they pretty much forced us to get the Swine Flu shot. Been wary of vaccinations ever since. They also used those air gun type injectors at the time, which were also proven to be a problem.