How can you leave your crypto for your children when you die and also guarantee that no one can access it when you are alive, at the same time?

How are crypto holders supposed to safely guarantee that their children gets to inherit their crypto after they die? How do you make sure that your crypto remains safe and only accessible to you when you are alive but also that your children can access it when you die?

One of the solutions I can think of is leaving instructions to access the wallet. However, this does not guarantee that you are the only person that can access the funds. If you leave instructions or write your key phrases, you are basically trusting that person to not steal your crypto.

​

​

​