Ok..every time I go on a bus there are people not wearing masks, and it is highly unlikely they all have a genuine reason not to wear a mask e.g. a group of 3 girls aged about 16-18, a youngish mid twenties couple. The bus drivers let them on, no question. Since 80% of people testing positive for coronovirus show no symptoms, it would seem a likely cause of spreading the virus. I don't want to say anything to the non mask wearers and I assume other mask wearing bus passengers feel the same. Like most people I don't want to cause embarrassment or confrontation. This is an issue on buses and apparently trains and underground and some shops. During a pandemic, aibu to think there must be a way to solve this.