Your comments concern me. Did you know the people that you saw close together on the beach? Perhaps they were a family group, or a group traveling together. Our group of eight and later six, spent most of our time together, and all sat together on the beach. We were distanced from people who were not a part of our group, but certainly not from each other. And we certainly didn't wear masks on the beach; did you? If I thought I had to remain completely isolated and wear a mask 24/7, even when outdoors, I'd just stay home.