I git a million mandatory ones in the military but avoided ever since. Everytime we got the flu shot or the nose gel version they had literally half the people on our ship got sick...I normally get the flu maybe once every 3 or 4 years so simple math dictates that's way better than the shot.

Additionally I got a tetanus shot for an injury when I was like 12 and I must have subconsciously hated them because they had to get 2 nurses and a doctor to hold me down to give it to me...my newborn is 100% pureblood despite being 2 months early . My oldest (10) only had is initial shots on a delayed schedule and has not had any since.