I tried a grand experiment in horse care this year. My sis and I bought out the family farm from the other sibs. I board my horses at a very nice local boarding barn - whose only fault is that they keep the horses in muddy sacrifice paddocks during the winter. I got the bright idea to bring the boys home for November - March 1 so that they could have a real pasture and no mud for the winter. We even had hay made last summer so that I didn’t have to buy it.
Now here it is, a week away from March 1 and how would I rate the experiment? I really do enjoy taking care of them even in spite of the fact that we’ve had the worst winter in a long time. They enjoyed their pasture. Except for a few snags, everything has worked out great. But! They are definitely going back March 1 because a) I want to ride (can’t do it at the farm as I don’t have a ring and also would have to deal with one horse in the barn being an idiot while trying to ride the other) and b) I do want a bit more flexibility in my schedule which is kinda hard to have when the boys have to eat.
So back to the boarding barn and I’m pretty sure they will come back to the farm again November 1, assuming we have a decent hay year and my body is still somewhat functional 
But I cannot imagine how hard it would be to do the work for 25+ horses. It’s a young person’s job. I always respected our barn help but I have a new appreciation for them now.