Of course everyone has secrets.
That's true, but if we listen to some brainwashed responses we receive in recent years, we'd say that's not true, i.e. "I have nothing to hide.".
It's essential to develop the ability to see through the bullshit.
That's even critical nowadays, with the avalanche of distorted truths and lies. Not sure we'll be able to tell the difference for much longer, in some cases.