Slow your roll. No one is bragging and no one is being nosy. It just comes up in the course of conversation, because you know Covid is a popular topic. I can tell you that none of the parents seem to care about anyone's vaccination status.
Can get dicey when positive tests come around or the x day quarantines happen.
Even when a planned opposing team is canceled because of protocol everyone is snooping around for status so people care when it effects them.