I understand this. They do not protect others against viruses from you either. My wording that you quoted was misstated on my part, that's the culprit here, but

I understand this. They do not protect others against viruses from you either. My wording that you quoted was misstated on my part, that's the culprit here, but read the next box of masks you see. And I know the CDC can't be directly blamed for this, but how many people do you know that wear masks because they don't want to get sick? Probably all of them, besides the ones that wear it so they don't get hassled in public. This is the subtle thing in the marketing (yes, marketing, they're not selling anything but it is the same process) encouraging you to wear masks. People might consciously know if you asked them that masks don't protect themselves, but in their lizard brain they're protecting themselves. People jogging alone or driving on their car alone wearing a mask aren't doing it to protect other people. If every advertisement telling people to wear masks explicitly reminded them that it does not protect them, a lot of people wouldn't bother to wear them.