Why are these people wearing yellow hats and what are they looking for?
I didn't understand what was going on until another grandmother explained that it was the Pokémon Go Fest 2021. I still don't really understand Pokémon, but it was nice to see so many people outside having fun with family and friends.
I'm not sure exactly but I think this is some sort of virtual scavenger hunt that involves Pokeman characters. They are hidden in a number of places and an app on your phone exposes them. But don't quote me on that!