I can only rely on direct observation. I work at a university (as a mere groundskeeper, so I suppose my observations may likely be mostly discounted) with an enrollment of approximately 20,000 students. I have worked there for nearly two years. (Fired from previous job for refusing covid vaccination). Not enough data to convince me that it was the best option. During my current employment , I have witnessed that the student body seems to be >90% unmasked. I have no Idea of the number of students or University employees who are vaccinated. There have thus far (from of June, 2022 onwards) been no known outbreaks of COVID infections ,etc. on campus. No mask mandates. People just living normally. Had COVID in December, 2022. Don't know how/where I caught it. Have had far more debilitating flu in the past. We'll see what the future holds, but I believe I made the right decision. Public health policies based on unfounded hysteria will typically have negative outcomes.