Are you kidding me man?, RN is one of the hardest jobs in the world, you have to be smart, have tact, show compation, show hope, show confidence, show endurance, show encouragement and a thirst to stay alive and healthy. You can not even compare a rough (physical) trade job with the mental endurance that a Nurse have to have. They "wizards" and "witches" or "Jedis", to use a more positive term, of the medicine world. Soft? Tell them to try to keep it together in the face of death and you'll see them fall apart crying like babies. No, you don't need to keep as friends you'll past them behind and leave them in the dust. Go ahead, they probably don't have the stamina. Being a Nurse takes almost a "Super human stregth" to achieve.