This really doesn't reflect my experience. I live in the Bay Area and have gone hiking every weekend since quarantine started, both in local spots in and around

This really doesn't reflect my experience. I live in the Bay Area and have gone hiking every weekend since quarantine started, both in local spots in and around the Bay and excursions to relatively-nearby Californian parks like Sequoia National Forest. In my experience, you bring a mask with you when you hike, and occasionally put it on for maybe twenty seconds out of every five or ten minutes (or even rarer intervals when hiking in the more remote areas like the national parks) when you pass by someone on a trail and can't maintain distance. You hardly ever have to wear it. And aside from this past weekend, it hasn't cracked 90 in the Bay Area pretty much all summer IIRC, and rarely even gets over 80.