Well as a US citizen we are very skeptical of government power. Information is power. Anything the government knows that it doesn't tell its citizens has the potential for abuse of power. So on some level we like things to be as public as possible.

It goes back to the idea of open courts, open legislative sessions, etc where any citizen can attend and see everything that happened except for narrow provisions for controversially protected things likes military secrets.

We disagree on how much should be public and im certainly on the end of rhe spectrum that says make everything public (except for military secrets). But there are things that courts regularly make secret like names of minors, health information, social security numbers, etc.