Horses are made to be out grazing. I learned this 30 years ago [How I Learned to Think Like a Horse] and have believed it fervently ever since.
Unfortunately, no one told Rodney & Milton.
They love their stall. We have one stall, attached to our run-in shed. It’s not the ideal arrangement, but the original purpose was never as a permanent horse house. It was a place for Mathilda while Previous Horse was off the property. Now, we use it for Milton’s morning feed and hay [Naptime].
Obviously, Milton likes to come in at breakfast. However, if anyone goes anywhere near the stall at any time – to pick up a bucket, or to clean – at least one horse appears at the door in an attempt to worm his way in.
The pasture is muddy, boring, and rainy. The stall is dry above and below, soft underfoot (and wonderful to pee on, apparently), full of food, and you don’t have to share eats with your roommate.