I have always believed that racial skills should be passive. Having to activate night eyes is just silly.
I completely agree. Especially the night eye perk. I've always thought that a player playing as a Khajiit character should
always see differently, like a real cat. And instead of seeing blue, all the lights in the game would appear brighter and light more of the world through their eyes.
Thinking about this, I've also always thought that non-player characters should make better use of their race's ability. For example, Khajiit non-player character's artificial intelligence should ignore darkness when detecting the player. If the player wants to sneak by a Khajiit, he or she should have to stay out of of the Khajiit's line of vision—just sticking to the shadows will result in detection.