There are a surprising number of downright ignorant people out there who believe and perpetuate pseudoscientific "facts" about vaccines - a group typically referred to as anti-vaxxers. Some of these people abstain from vaccines due to religious reasons. (Apparently their imaginary friend doesn't think it's a good idea.) Others spew mind-numbingly incompetent conspiracy theories about "big pharma" and their plans for mind control - ridiculousness rising to the level of the Q-Anon bullshit. Then there are people who are taken in by the nonsense because they don't know how, or are too f'ing lazy, to access a peer-review article in a reputable scientific magazine. This only highlights why developing critical thinking skills is so very important.
The truth of the matter is, that yes, vaccines can have side-effects; however, this can be said about anything introduced into the body. Medications in general, even those purchased over-the-counter, all have some degree of side-effects. Alcohol has a common side effect. (What the f' do you think a hangover is?) Smoking, of course, has a long list of potential side effects including Cancer of all things. Foods also have side effects. (Don't believe me? Eat at Taco Bell and find out for yourself.)
The point I'm trying to get to is this: when it comes to vaccines, the reward outweighs the potential risk. That's all there is to it. If you're an anti-vaxxer (and are actually reading down this far), I'm asking you to do one simple thing on the behalf of society at large: get vaccinated, dumbass.
Together, we can defeat Covid-19.