Sometimes it's enough to leave enlightening information, in a place where we know that our family/friends will look when they are packing up after a very serious accident.
If your family is not into crypto and Bitcoin and doesn't understand what a recovery phrase is, they need to be made aware of the importance and dangers of a recovery phrase. You wouldn't want your child or wife make a photo of the seed and place it on Facebook asking their friends does anyone know what this is!?
But I have written in my dairy and Clouds for backup and also if any time my family needs my money or crypto and if I’m not able this time so for those time, I have write some instructions to know my family I have crypto and how to they access my account and they receive my crypto.
What do you think is it good?
It depends. If all the information is written in your diary, are you sure they will find it? Do they know that they should be looking for the keys somewhere in the diary? If not, they might never read it because it's a rather personal thing.