The reason why they said only sick people to wear masks is because they didnt have enough masks..we have the surgical masks in the house along with two N95 masks..I dont care what anyone says when I go outside I wear it and dont have to worry about someone coughing nearby, due to coronavirus or any other type of virus they might have
If some one infected coughs near you, the air borne droplets will get in through the unprotected eyes.