It seems common for people to assume that privacy is about hiding something. Most people close the door when they're using a toilet in a public place. Is it because they have something to hide? Or is it that they want some privacy?
Privacy can be about hiding things, but it's also about space and boundaries. I want to have some control over who gets to know me, and how intimately.
So much of the "I have nothing to hide" retort misses the fact that it isn't about big secrets, but rather a collection of little secrets (if you want to call them that - they are just facts that are sensitive).
Less about are you planning to violently overthrow the United States Government. More about what genre of porn do you like to entertain yourself with.
These little things can be used against you. We all have them.
Privacy can be about hiding things, but it's also about space and boundaries. I want to have some control over who gets to know me, and how intimately.