I’m guessing people don’t understand how much athleticism it takes to ride horses. There’s about a good 1000 pounds under her to navigate and control, not with just her arms but her legs. Don’t let Hollywood fool you into believing its an easy task. There’s a reason why these actors go to bootcamp for horse riding. And don’t give me that nonsense about well, it’s not as physically demanding as what Sam does. RIdiculous. It is. When you compare Sam and Caitriona’s sizes, it is.