i think leaving clues and telling your loved ones or love one the tricks and educating them about bitcoins will help you in more than one ways and you can simply tell them about bitcoins and how to use them after you die and good luck for your future
So you want your loved ones to be Sherlock before they have the bitcoins they have inherited?
I agree with educating them about bitcoins because they will not just have the bitcoins but they will learn and know how to grow it more. Through that they will be able to make a living out of the inherited bitcoins.