Can't get onboard with this enough. Think about the shared sacrifices of those generations. Our grandparents, great grandparents, etc. We can all do our part. Wear a damn mask.
For some perspective, my friends & I spent the past couple of summers visiting key sites of the World Wars in France, inc D-Day landing beaches, Somme trenches. The sheer size of the cemeteries is heartbreaking... So yes, I can wear a mask in a bloody shop for the greater good.