There’s many things we do everyday, and have done for many years, which makes it necessary to put our trust in others. Going to buy food from the shops being one example. You may as well say we should all stop eating, say cheese for example....because we don’t know the long term affects. We’ve had vaccines for decades, they all had to start somewhere.
I can understand people being cautious of course. I was to start with....but many people have worked long and hard over these vaccines. In the past, vaccines took many years simply because we had time for them to. Now we don’t. It may turn out that we’ve been over cautious in the past. I suppose we’ll never know.
If people don’t want to take it, that’s fine, as long as there’s no risk of them putting someone else in danger.