The mandate isn’t that you get vaccinated. It’s that you show proof of vaccination.
I followed this logic all the way around the circle you've drawn.
If the original poster needs to show proof of vaccination, of what help is your advice?
“If the original poster needs to show proof of vaccination, of what help is your advice?”
He told them he was vaccinated. When he sues for wrongful termination, he can say “I told them I was vaccinated”. Saying “I am vaccinated” is a form of proof.
They want access to his medical information which may not be appropriate. What if the company asked “We need proof that you are not pregnant”? This is all unchartered territory