How is the common man supposed to know that there isn't anything strange in the vaccine? Governments have forcibly sterilised segments of their population before.
Some kind of bullshit multivariate game theoretical common sense analysis in your head about the different interests at play and their degrees of impunity vs. mandated responsibility and the estimated probability that you're being lied to in the context of your variable knowledge of the technologies and concepts involved idk lol that's how I do it.