I personally bequeath all my bitcoin knowledge to my family. I told them my bitcoin assets, how I made money from bitcoin, and also told them how to access them. All of this I did so that all of my bitcoin assets could be useful for my family. What about you guys, do you guys do the same with me?
Private key is the most important thing if you own a crypto currency. If you share it with someone or even with your life partner, there is every chance that you might have a bad day with him/her and he /she may misuse your funds. It is very difficult to completely trust anyone and then share the key with your loved one.
Thinking something like they misused your fund will only show that you do not trust them.
But its everyone's decision whether they share any information with anyone or not, if not sharing it to someone close to you will secure your funds then its fine.