Make sure they are actually able to do this, too, and will be able to do this years from now, when everything you may have told them will be long forgotten. Most people have no idea what gpg is, have never used a command line, and have only a really basic idea of how encryption in general works.
If I told one of my coworkers that I use `pass` [0] to keep my passwords encrypted and synced into an online git repository, they would know what that means. My wife would have no idea.
So then it's not just a matter of "here are the relevant credentials", it's also "Here are the relevant technologies and X would know how to piece it all together"
But then at the same time, maybe it just doesn't really matter and I should just get a safe deposit box at the bank and put everything relevant in there in paper form.