Full disclosure: I am in a high-risk group due to age. I have had three shots. It is as good as I can do for me at this point in my life. It is the prudent thing for me to do.
Now then. If the "vaccines" were all that good, and Covid19 was as universally bad as they say it is, there would be no need for mandates or Vax passports etc. If the shots actually kept people from getting sick or carrying the germ, everyone would demand the right to get the shots. If Covid19 was a serious illness to the young and fit as a it is to the old and overweight (and it IS a serious illness to them), everyone would want to get the shots.
However: The shots do not prevent infection. tThey are effectively a pre-treatment that keeps an infected person from becoming deathly ill, most of the time. Covid19 does not affect the young and fit as strongly as the old and infirm (who may be in grave danger from it).
With that said, there is a real potential for complications from the shots later on in life. Iit is no wonder that many folks are hesitant (resistant) to get the shots themselves or make their children get them.