I'm not saying comply with the mask orders. In fact I have the utmost respect for those who refuse at all costs, but lets be honest, sometimes our head just isn't in the right space or we need something NOW and don't have time to potentially get kicked out and go store to store.
In these such cases, a face-shield is a good alternative. They're not so pervasive and they don't really obstruct ones breathing too badly if they're only worn for small amounts of time. It's also not as much of a threat for bacteria spread as it's not physically pressed up against ones mouth.
For example, I only have one liquor store in my vicinity and they're mask nazi's so for me it's a bit of a leverage thing. I'm not a heavy drinker or anything and sure, I could go somewhere else and stock up but it's not always practical.
So for those of us mask resisters who pick and chose our battles, a face-shield is a good alternative when we choose to comply
I saw a kid hand his mask to another kid so he could go into the 7-11.