I have a new perspective towards what it means to keep things private. I am thinking that keeping things private does not always mean keeping things to yourself. Before you criticize, I know that to have someone as trusted as that is rare and almost impossible, but they still exist, and sometimes you can find that person in your spouse. If you can share important details like passwords of bank account or safe, or grant them access to important documents, should we not also be able to trust these people with access to our bitcoin wallet?
It seems you are missing something about privacy because privacy breach does not apply to what you described, rather is simply means
unauthorized access to your information. If I tell someone about my bank account details, bitcoin holding and even secret keys, that does not pose a privacy concern because I voluntarily divulged such information. It only become a source of concern when people get access to information I did not want to share and get knowledge of what I don't want them to know. Being able to do your thing without a third and unpermitted eye looking at you or monitoring you is one thing everyone yearning for privacy is really interested in. It is even advisable you share your financial details to someone of trust to avoid the loss of them in case anything happens because no one will live forever.