They have not yet fallen out. Couple of times I’ve adjusted them when they felt TOO loose.
They’re quite comfortable this way. I could literally wear them all day. And I hear ambient sound around them too (which most people consider a negative but I consider a plus). I’m hoping this experiment works.
I’m not too concerned about losing one. I figure if it falls, I’ll just pick it up. Can’t go far. However, I am usually wearing the AirPods while walking the dog and I’m concerned the dog will see the AirPod hit the ground and think “YUM! TREAT!” I’ve already lost one AirPod to a similar incident.