I grew up as one of the early generations of children getting a full range of vaccinations. Parents were well aware of the horrors of polio and smallpox and had lived through other disease outbreaks, so there was no real pushback when vaccines were developed and given to children. But we are human, and one thing that happens is that we have to find a tiger in every bush. So, as vaccines became common and many scary diseases disappeared or stopped being scary, we decided that the vaccines were the tiger, instead.
I got the first COVID shots because I needed to; my employer insisted on them. I didn't get the boosters mostly because I was being lazy about it. I did get COVID; it lasted two days and I was very tired but otherwise was fine. I don't know if the vaccine made a difference, but I am not complaining.