A lot of people are afraid of new things they don’t understand. The hope is that people realize that the fear is irrational and listen to experts in the relevant field.

That would be me, highly reluctant to try the new possibly risky thing until many other people have done it. But I DO realize my fear is (mostly) irrational, so after a bit I gather my courage and do the thing anyway. For covid mRNA vaccines, I skipped the first round, and watched the news carefully for word of people dropping dead. It didn't happen, so I caught the second round of vaccines in my area about a month later. I was still afraid, but considered it my civic duty to reduce the spread to the greatest degree in my ability. And since then I've got every "booster" I was eligible for. As an old person, I'm eligible among the first, lol.

I'm not convinced there aren't some under reported risks to the vaccine. But I still consider it my civic duty to help prevent the spread of something much riskier, covid.