I'm sure the majority don't use a case on their AW, but am starting to poll to gauge just by how much? My grandma swears she needs a case for her AW, but she's also never owned any Apple Device, so she doesn't know how well they hold up.
I did use a case for a while with my AW3 but found it to be too bulky. After removing it there was a lot of dust and dirt in between the watch case and the actual watch itself which caused little scratches. This time around no case.
No. I wear clothing. My iPhone sports a case when out-and-about, but is naked at home. My Space Black SS Apple Watch Series 3 has never had a case, nor did my first-generation Series 0 -- really no need for it.
Usually no. When working in the yard I have work gloves with cuffs over the Watch. I do use cheap snap on case when hiking as exposure to rocks is possible, and the case seems like a prudent thing to use for that activity.
Neither my watch nor my phone wear a case.This may sound dumb but the main reason why I dislike cases is because it hides the designer's intentions. Aside from the simple fact most cases are bulky and tacky.