There obviously isn't one, that's part of weighing the risks - which we didn't have enough time or data to do for covid and it's vaccines. Part of the whole informed consent thing.
Thankfully we can all now choose, and see better data
You know you have to get COVID to have natural immunity, right? So what should we do, have COVID parties like parents used to have chicken pox parties for their kids?
Get the vaccine if you're elderly or have underlying risks, otherwise doing 3 shots a year to stay up to date doesn't look very beneficial anymore.
We didn't know how ineffective the vaccine was in the beginning, but our leaders still said things like "This will protect you. Fully. Everyone needs to have it". I'll provide links if you didn't see any of that going on.
It was a lot more political than it was scientific, which is a huge red flag.