I work as a delivery driver for a takeout restaurant. Inside, we can have up to ten or eleven employees working around each other and not a single one wears a mask. I would say 30-40% are likely vaccinated, most of them are high schoolers who don't see covid as a big deal.

If only one person out of 10 is wearing a mask, that's essentially useless, isn't it? It's my understanding that the point of the mask is to get enough people wearing them to grant group protection. If I'm not actively sick and I'm vaccinated, there isn't much of a difference if I wear one or not, right?