My DW and I haven't had a flu shot in a decade, maybe in two decades. We hardly ever got flu symptoms, and when we did, it wasn't very serious. But we've gotten all the traditional vaccines: MMR, tetanus, you name it.
If the Covid jabs had just contained the dead or weakened virus, like most any traditional vaccine, we would have gotten them. But we didn't feel comfortable taking something totally new and (when it came out) not fully tested. Besides, we could see that the common medical practice of early treatment (which has always been the norm with other illnesses) had been ditched in favor of 'panic mode' (being told to stay home until so sick it was necessary to hospitalize, then most likely get intubated). Our "antennas were raised" by this. And obviously the pharmas stood to make a ton of profits from the government purchase agreements. We just decided to sit out the jab and wait to see how things panned out.
Looking back, I feel like we did the right thing for us. We've caught it a couple times each, but it hasn't been serious (although DW got too dehydrated on her first go-round and went to ER for a bag of saline and some anti-nausea med). YMMV. If you want the shots, go for it. None of my business, same as what I do is no one else's to control.
My siblings all got the shots and the first booster, but it didn't keep them from catching Covid later on, nor did their illnesses seem any less severe than DW's and mine; now they say they're done getting boosted. I think a lot of people feel that way.