Anecdotally, I frequently observe masks causing people to touch their faces more. Masks cause itches, need to be adjusted, must be removed for drinking/eating, etc. I would be very interested in large-scale empirical studies measuring how effective masks are in practice. Sure in theory they can help. But I suspect in practice with the general public in everyday life, they do little to nothing to reduce virus sharing.

a) no they don’t and b) face touching has almost nothing to do with spreading COVID. That’s April 2020 thinking there…