The scientific evidence is overwhelming that homemade masks limit virus spread

There are “34 scientific papers indicating basic masks can be effective in reducing virus transmission in public — and not a single paper that shows clear evidence that they cannot. Hospitals running short of N95-rated masks are turning to homemade cloth masks themselves.

Most countries who have Coronavirus under control have widespread mask usage
~50% of people with Coronavirus are asymptomatic
You can help change your country's norms and make mask safety mainstream