After having been half a day at a hospital with a face mask I realize it's just «Gewöhnungssache» (a matter of getting used to something). I am sure when about half of the population experienced half a day with a face mask on, then the majority will adapt. Face masks are just simply something which needs some getting used to. When really many people wear face masks then nobody will eye them warily.

And Switzerland probably never will pass this threshold.