I don't get it either. I'm a very senior engineer and I also live on a horse sanctuary. Taking care of horses is hard, very physical work that has to be done every day, regardless of weather or how deathly ill you feel.

It's a pain in the ass. People ask if it's rewarding. No, it's just pain in the ass labor that has to get done. The only reason I do it is so my wife doesn't have to do all the work by herself.