It's fascinating why some still "argue" about people getting infected with mask on, proving mask don't work. Seeing the amount of adults not wearing properly (not just parents but teachers as well!), no wonder why mask don't work!
If you look at it, base on this logic, there are a long list of protection we wouldn't need, i.e vaccination (even Dr. Kapila died after his jabs), or even better - seat belt! God knows how many people died from car crashes each year while having their seat belt on. Does this prove seat belt don't work?