True on exertion, but young folks like to exert. Not all will have a clot reaction, but a certain percentage will.
I agree. Certain percentage will have adverse reactions from almost every medical procedure. People have died in dentist chairs.
I take some solace from the numbers about covid vax. Last number I saw many moons ago was 265 million Americans were jabbed with the vax. If casualties remain under one million, it simply computes as 99.7% are alive and functioning.