Okay kiddo, imagine that you have a secret diary where you write about your thoughts and feelings. You probably wouldn't want anyone to read it while you're still alive because it's private and only for you to know. When you die, you might think that your secrets will stay with you and that no one else will ever find out what you wrote in your diary.
Post-mortem privacy is all about making sure that people's personal information and secrets are kept private even after they die. Just like how you wouldn't want anyone to read your diary without your permission, people who have passed away also have a right to privacy.
For example, if you wrote in your diary about your crush, you wouldn't want someone to tell them after you die, right? Or if you had a medical condition that you didn't want people to know about, you wouldn't want that information to be shared with anyone else after you die.
In the real world, post-mortem privacy laws protect people's personal information and make sure that it's not shared without their consent even after they die. This helps to respect people's privacy and let them keep their secrets safe, even in death.