I'm going to say outdoor.
The "door" part doesn't really have any significance. No one would say camping under the open sky is an indoor activity, even if there's a fence with a door around the campsite.
I think it makes more sense for the deciding factor be whether you're in a controlled or uncontrolled environment. And while part of the cave might be controlled if there's an artificial entryway or home, that's not what you're there to see.
There is, or at least was, at least one place catering to your friend's tastes: https://urnotalone.com/male-maids-serve-it-up-at-japans-first-cross-dressing-maid-cafe/
Edit: More recent article: https://www.tokyoweekender.com/food-and-drink/restaurants-and-bars/boys-magically-become-girls-at-the-maho-ni-kakerarete-crossdressing-bar/
But that's true, isn't it? Putting aside volume and shape.
I wonder if that was the inspiration for the Nowhere King from Centaur World.
Not much under that, but I remember them. I remember them more than slide decks.
No, 9 months community service.
Aw, dang it, I thought that might be a character, but I didn't find it.
So one dog is named Rǝx and the other is just "thǝ dog."
I thought that until just now.
The mode of a set of numbers is the number that occurs the most times in the set.
For example, in [1,4,4,4,5,6,6,7], the mode is 4, because there are more 4s than there are any other number.
In Iran, gender reassignment is legal, and they'll even change the birth certificate to match, from what I learned a decade ago.
Homosexuality, however, is a capital offense, so many gay people are pressured to transition.
Some conservative societies seem to have the attitude that it's better to go from one role with rigid expectations to another than it is to fail to meet the expectations of your original role.