Answer:
Personal space and privacy are more important to the human psyche than you might think. Privacy protects our dignity, quiet allows us to get our thoughts and emotions under control, and personal space can provide time for both sides of our brains, the creative and logical, to function.
Sometimes there isn't a good answer. No matter how you try to rationalize the outcome, it doesn't make sense. And instead of an answer, you are simply left with a question. Why?