My main objection is not so much about the masks themselves, but rather about the mindset that goes along with them. It's a mindset that takes sandboxes and water tables and toys out of kindergarten classes; privileges teaching kids to stay six feet apart over teaching them to share; and inflicts on them the barbarity of "silent lunch" (yes, wonderful, let's have kids sit in a classroom all day and then not allow them to talk over lunch because their masks are off and talking would be too "high-risk").