Clones are more than just biological experiments. We learn this through the course of the Clone Wars. They care for each other, civilians, their Jedis, and even droids. They have fallen in love, started families, lead normal lives. The clone bar is always packed with soldiers trying to forget the war, trying to have fun, be people instead of experiments. There are so many horrifying missions they live through. The brain worms on Coruscant -- the Rishi Station -- Umbara -- Christophsis; they are feel the pain. They know when each brother dies, whether they're there when it happens or they hear about it in the mess hall 12 rotations later. The battle continues in their minds, when they are trying to sleep, examining strategies, trying to find what could've been done differently, how they could've saved lives. It's not by choice, it is in their programing. Sure they're a step up from droids, with some free thinking abilities. But since their birth they have been conditioned for war, rapid growth cycles aside: they are children, they just don't know it. The Nightmares. How many battles did it take before the average clone woke up in a cold sweat. How many pilots hands shook when they got in the cockpit, images of their brothers seared into the viewport. How long did it take for the constant battle to erode their humanity until they're no better than droids. Every clone knows The Nightmares. The failed missions, the weight of your brothers cold body in your arms. I can only imagine how the chip felt in their minds, could they feel it at all times, a tiny nagging in the back of their head saying "you can't be trusted, you're not in control." A sense of doom hanging over their heads, knowing their destined for greatness, an extermination. How did it feel, Tup, Fives, when they were free? When for just a moment, there was silence in their minds. Just a moment their thoughts were clear.
My poor poor boys, suffering things the mind can't even comprehend. Anyways, I'm rewatching the clone wars if you didn't notice (: