Masks will not prevent the spread. You're absolutely right. But it will slow the spread. Which is, for such an incredibly cheap and easy thing to do, amazingly effective. Just for being better than nothing, at almost no expense and effort.
Cheap cloth masks, no. You're absolutely right about that. It needs to be at least two layers of a tightly woven material, ideally with a pocket for a disposable filter (I make mine out of denim with plain cotton lining, which apart from looking good because the mask holds shape, is also pretty effective because it's such a thick fabric). But in general, masks do work. I've never understood the anti mask people in general, they're saying it won't stop the spread. Yeah well, seatbelts don't stop deaths in car accidents but they sure as hell reduce them, right?
Well technically her breath and the air she breathes goes above her head, right? So technically unless a tall person with covid coughs into it, it might work...? Idk.
I've seen more bizarre "masks". Such as a man wearing a sleeping mask over his mouth. His nose was out of course because that's not what sleeping masks are made for. And of course a variety of masks being worn wrong, made out of bad materials (no, a mesh mask won't work unless you also have two layers of cotton under the mesh), scarves being worn over the mouth in all kinds of weird manners, and so on.
Oh well
I've seen more bizarre "masks". Such as a man wearing a sleeping mask over his mouth. His nose was out of course because that's not what sleeping masks are made for. And of course a variety of masks being worn wrong, made out of bad materials (no, a mesh mask won't work unless you also have two layers of cotton under the mesh), scarves being worn over the mouth in all kinds of weird manners, and so on.