Infants and elderly definitely sound like they could fall into either the immunocompromised, or "arguably-immunocompromised" category.
I don't agree with the immunity (I mean, no reason they should have it). Good point.
As for point 3, I only want to point out one possible example since you had said all. Kind of a nitpick there.
Thanks for the reply!
Yep. That's my point.