Not sure why this is getting downvoted. Wearing a mask correctly, in a way that gets a proper seal, is something health care pros are trained to do and most people aren’t. If you’re constantly touching the mask (which has been concentrating particles in the air) and then touching other parts of your face, the mask is less effective.

When you know touching your face is the worst thing you can do this has personally been a proven lie. I assume if there is science behind a study that tracks people through out the day and shows people touch their face more often, that they were not told to avoid touching their face. I think to touch an eye brow or my hair and my face subtly moves and I feel the mask on my face and realize that I should not come anywhere close to my face. People are not stupid, they just need to be educated.