1: disclosure of your wallet balance and transfer of wallet private recovery keys to the next of kin.
I don't completely agree with you on this as I feel this might create some psychological problems for the heir. For instance, if you have let's say 100BTC and you reveal this to your heir that is a teenager, there is a possibility that you will damage his psychology. Don't forget that there is amount of money a teenager will be exposed to and his character might changed drastically... some might become lazy, proud, arrogant and there are some that might start habits such as drugs and others.
This is the reason some wealthy men only make their children comfortable without exposing them to so much wealth until they are psychologically fortified to handle large amount of money mostly through will or other means of transfer.
2: giving the one that wants to inherit the assets the basic knowledge of cryptocurrency and how to secure their assets guiding their self against any possible attack by maintaining high privacy.
This is absolutely necessary because if you must transfer Bitcoin to heirs, they must have the required knowledge to handle same. It is even wise we teach our children Bitcoin irrespective of if we are ready to hand over to them or not... this way they can also start building even from an early stage. Personally, Bitcoin is surely one of the things I will prioritize for my children... even as they build their professional careers and venture into different different field of life. I have always been an advocate of each one start from your family and friends in sharing the knowledge of Bitcoin and the technology behind it. If all of us in this forum start from our immediate families, imagine how many Bitcoin lovers and users we can nurture within a short time.
I get the sense that the more that I read through these kinds of topics, the more concerned that I get...
I truly understand the angle you are coming from as it was same for me. However, the essence of seeking diverse opinion from people is to be able to view the entire thing from different perspectives and select the most suitable concept. No doubt many wonderful suggestions have been reeled out already; one can add some refining too depending on what gives us peace of mind to implement.