You leave it up to the patient. Lying puts you at higher risk. Safe? Probably? Free? No. I can prove it so give my 2nd dose to someone who truly needs it in the 3rd world. I ll get mine but we the taxpayers are paying for it. Why? As you said “just in case”. Pretty sad.Sketchy? Seems more like they are just weighing erring on the side of caution. Especially considering that they are so safe.
Also, a lot of this is just that we didn't really track covid. How do you prove you had it? So yeah, we could call that a fail.