It’s also worth pointing out that this isn’t exactly a new policy. Most forms of education from kindergarten through college requires proof of various vaccines. I remember having to get a whole slew of boosters at 18 because we couldn’t find the old records in order to go to college.
You’d think that after a pandemic has killed 600,000 of our fellow citizens we’d be able to come together and simply repeat as adults what we do for most children, but alas we live in a deeply unserious time.